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Results for "

impurity

" in MedChemExpress (MCE) Product Catalog:

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By Research Areas:	Cancer (59) Cardiovascular Disease (43) Endocrinology (10) Infection (46) Inflammation/Immunology (51) Metabolic Disease (31) Neurological Disease (30)
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1215

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Biochemical Assay Reagents

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103

Isotope-Labeled Compounds

Click Chemistry

Oligonucleotides

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-76937

Impurity of Doxercalciferol	VD/VDR	Endocrinology
Impurity of Doxercalciferol is an impurity of doxercalciferol, which is a synthetic analog of ergocalciferol (vitamin D2), used as a agent for secondary hyperparathyroidism and metabolic bone disease, and it suppresses parathyroid synthesis and secretion.

HY-15264

MC 1046 1 Publications Verification impurity A of Calcipotriol	VD/VDR	Cancer
MC 1046(Impurity A of Calcipotriol) is an impurity of Calcipotriol; Calcipotriol (MC 903; Calcipotriene) is a ligand of VDR-like receptors.

HY-13293

Impurity C of Calcitriol	VD/VDR	Cancer
Impurity C of Calcitriol is the impurity of Calcitriol (HY-10002). Calcitriol is the hormonally active form of vitamin D. Calcitriol is the active metabolite of vitamin D3 that activates the vitamin D receptor (VDR).

HY-15265

Impurity F of Calcipotriol	VD/VDR	Cancer
Impurity F of Calcipotriol; Calcipotriol (MC 903; Calcipotriene) is a ligand of VDR-like receptors.

HY-13294

Impurity C of Alfacalcidol	VD/VDR	Metabolic Disease
Impurity of Alfacalcidol. Alfacalcidol (1-hydroxycholecalciferol; Alpha D3; 1.alpha.-Hydroxyvitamin D3) is a non-selective VDR activator medication.

HY-15266

24R-Calcipotriol PRI 2202; impurity D of Calcipotriol	VD/VDR	Cancer
24R-Calcipotriol(PRI 2202) is an impurity of Calcipotriol; Calcipotriol (MC 903; Calcipotriene) is a ligand of VDR-like receptors.

HY-13292

Impurity B of Calcitriol 1β,25-Dihydroxyvitamin-D3; 1-Epicalcitriol	VD/VDR	Cancer
Impurity B of Calcitriol, Calcitriol(1,25-Dihydroxyvitamin D3; Rocaltrol ) is the hormonally active form of vitamin D, Calcitriol is the active metabolite of vitamin D3 that activates the vitamin D receptor (VDR).

HY-13292R

Impurity B of Calcitriol (Standard)	VD/VDR	Cancer
Impurity B of Calcitriol (Standard) is the analytical standard of Impurity B of Calcitriol. This product is intended for research and analytical applications.

HY-131251

Cetirizine 3-chloro impurity	Drug Metabolite	Others
Cetirizine 3-chloro impurity is an impurity of Cetirizine 3-chloro .

HY-131270R

*Febuxostat impurity* 8 (Standard)**	Drug Metabolite Reference Standards	Others
Febuxostat impurity 8 (Standard) is the analytical standard of Febuxostat impurity 8. This product is intended for research and analytical applications. Febuxostat impurity 8 is an impurity of Febuxostat. Febuxostat is selective xanthine oxidase inhibitor with a Ki of 0.6 nM .

HY-131269

*Febuxostat impurity* 7**	Drug Metabolite	Others
Febuxostat impurity 7 is an impurity of Febuxostat. Febuxostat is selective xanthine oxidase inhibitor with a K_i of 0.6 nM .

HY-131270

*Febuxostat impurity* 8**	Drug Metabolite	Others
Febuxostat impurity 8 is an impurity of Febuxostat. Febuxostat is selective xanthine oxidase inhibitor with a K_i of 0.6 nM .

HY-131271

*Febuxostat impurity* 6**	Drug Metabolite Xanthine Oxidase	Others
Febuxostat impurity 6 is an impurity of Febuxostat. Febuxostat is selective xanthine oxidase inhibitor with a K_i of 0.6 nM .

HY-164228

*Vericiguat impurity-3*	Others	Others
Vericiguat impurity-3 is an impurity of Vericiguat (HY-16774). Vericiguat (BAY1021189) is a potent, orally available and soluble guanylate cyclase stimulator .

HY-164229

*Mianserin impurity-1*	Others	Others
Rosuvastatin impurity-1 is a reference substance of rosuvastatin impurities.

HY-164226

*Rosuvastatin impurity-1*	Others	Others
Rosuvastatin impurity-1 is a reference substance of rosuvastatin impurities.

HY-Z8863

*Citalopram impurity-1*	Biochemical Assay Reagents	Others
Citalopram impurity-1 (Compound iv) is an amide impurity generated during the synthesis of Citalopram (HY-121203) .

HY-131272R

*Febuxostat dicarboxylic acid impurity* (Standard)**	Drug Metabolite Reference Standards	Others
Febuxostat dicarboxylic acid impurity (Standard) is the analytical standard of Febuxostat dicarboxylic acid impurity. This product is intended for research and analytical applications. Febuxostat dicarboxylic acid impurity is an impurity of Febuxostat. Febuxostat is selective xanthine oxidase inhibitor with a Ki of 0.6 nM .

HY-131273R

*Febuxostat amide impurity* (Standard)**	Drug Metabolite Reference Standards	Others
Febuxostat amide impurity (Standard) is the analytical standard of Febuxostat amide impurity. This product is intended for research and analytical applications. Febuxostat amide impurity is an impurity of Febuxostat. Febuxostat is selective xanthine oxidase inhibitor with a Ki of 0.6 nM

HY-131273

Febuxostat amide impurity	Drug Metabolite	Others
Febuxostat amide impurity is an impurity of Febuxostat. Febuxostat is selective xanthine oxidase inhibitor with a K_i of 0.6 nM

HY-131272

Febuxostat dicarboxylic acid impurity	Drug Metabolite	Others
Febuxostat dicarboxylic acid impurity is an impurity of Febuxostat. Febuxostat is selective xanthine oxidase inhibitor with a K_i of 0.6 nM .

HY-133777

*Ciprofibrate impurity* A**	PPAR	Cancer
Ciprofibrate impurity A is an impurity of Ciprofibrate. Ciprofibrate (Win35833) is a potent peroxisome proliferator, increases the phosphorylation level of the PPARalpha .

HY-100663

*Gefitinib impurity* 2**	EGFR	Others Cancer
Gefitinib impurity 2 is the impurity of Gefitinib. Gefitinib (ZD1839; HY-50895) is a potent, selective and orally active EGFR tyrosine kinase inhibitor with an IC₅₀ of 33 nM. Gefitinib selectively inhibits EGF-stimulated tumor cell growth (IC₅₀ of 54 nM) and that blocks EGF-stimulated EGFR autophosphorylation in tumor cells. Gefitinib also induces autophagy. Gefitinib has antitumour activity .

HY-133774

*Trityl olmesartan medoxomil impurity* III**	Drug Metabolite	Others
Trityl olmesartan medoxomil impurity III is an impurity of Trityl olmesartan medoxomil. Trityl olmesartan medoxomil is an intermediate of Olmesartan medoxomil .

HY-134685

*Edoxaban impurity* 6**	Factor Xa Thrombin	Cardiovascular Disease
Edoxaban impurity 6 is an impurity of Edoxaban. Edoxaban (DU-176) is a selective, potent and orally active factor Xa (FXa) inhibitor with K_is of 0.561 nM and 2.98 nM for free FXa and prothrombinase, respectively. Edoxaban is an anticoagulant agent and can be used for stroke prevention .

HY-134686

*Edoxaban impurity* 4**	Factor Xa Thrombin	Cardiovascular Disease
Edoxaban impurity 4 is an impurity of Edoxaban. Edoxaban (DU-176) is a selective, potent and orally active factor Xa (FXa) inhibitor with K_is of 0.561 nM and 2.98 nM for free FXa and prothrombinase, respectively. Edoxaban is an anticoagulant agent and can be used for stroke prevention .

HY-141410

Fluticasone dimer impurity	Drug Metabolite	Others
Fluticasone dimer impurity is a dimeric impurity of Fluticasone Propionate . Fluticasone propionate is a corticosteroid with comparatively high receptor affinity and topical activity .

HY-131255

Ziprasidone amino acid Ziprasidone impurity C; Ziprasidone open ring impurity	5-HT Receptor Dopamine Receptor	Neurological Disease
Ziprasidone amino acid (Ziprasidone Impurity C) is an impurity of Ziprasidone. Ziprasidone is a combined 5-HT (serotonin) and dopamine receptor antagonist. Ziprasidone exhibits potent effects of antipsychotic activity .

HY-131265

*Mesalamine impurity* P**	PPAR PAK NF-κB	Inflammation/Immunology Cancer
Mesalamine impurity P is an impurity of Mesalamine (HY-15027). 5-Aminosalicylic acid (Mesalamine) acts as a specific PPARγ agonist and also inhibits p21-activated kinase 1 (PAK1) and NF-κB .

HY-131276R

*Olmesartan lactone impurity* (Standard)**	Reference Standards Angiotensin Receptor	Cardiovascular Disease
Olmesartan lactone impurity (Standard) is the analytical standard of Olmesartan lactone impurity. This product is intended for research and analytical applications. Olmesartan lactone impurity is a cyclic ester impurity of Olmesartan. Olmesartan is an angiotensin II receptor (AT1R) antagonist and has the potential for high blood pressure study .

HY-131276

Olmesartan lactone impurity	Angiotensin Receptor	Cardiovascular Disease
Olmesartan lactone impurity is a cyclic ester impurity of Olmesartan. Olmesartan is an angiotensin II receptor (AT1R) antagonist and has the potential for high blood pressure study .

HY-400785

*Dapagliflozin impurity* A**	Drug Derivative	Cancer
Dapagliflozin impurity A (Compound A) is a dapagliflozin peroxide, a genotoxic impurity, can cause damage to human genetic material at very low concentrations, leading to genetic mutations and possibly tumorigenesis .

HY-131256A

*Cetirizine Impurity* C dihydrochloride**	Histamine Receptor	Inflammation/Immunology Endocrinology
Cetirizine Impurity C dihydrochloride is an impurity of Cetirizine. Cetirizine, a second-generation antihistamine and the carboxylated metabolite of hydroxyzine, is a specific, orally active and long-acting histamine H1-receptor antagonist ^{[1] ^{^{[2] ^.}}}

HY-131256

*Cetirizine Impurity* C**	Histamine Receptor	Inflammation/Immunology Endocrinology
Cetirizine Impurity C is an impurity of Cetirizine. Cetirizine, a second-generation antihistamine and the carboxylated metabolite of hydroxyzine, is a specific, orally active and long-acting histamine H1-receptor antagonist ^{[1] ^{^{[2] ^.}}}

HY-133780

*Afatinib impurity* 11**	EGFR Autophagy	Cancer
Afatinib impurity 11 is an impurity of Afatinib. Afatinib is an irreversible EGFR family inhibitor with IC₅₀s of 0.5 nM, 0.4 nM, 10 nM and 14 nM for EGFR ^wt, EGFR ^L858R, EGFR ^L858R/T790M and HER2, respectively .

HY-121899

1-Oxo Ibuprofen Ibuprofen EP impurity J	Drug Metabolite	Others
1-Oxo Ibuprofen (Ibuprofen EP impurity J) is a degradation product and a potential impurity in preparations of Ibuprofen. Ibuprofen is an anti-inflammatory inhibitor targeting COX-1 and COX-2 with IC₅₀s of 13 μM and 370 μM, respectively .

HY-107495R

*Betahistine EP Impurity* C (Standard)**	Histamine Receptor	Inflammation/Immunology
Betahistine EP Impurity C (Standard) is the analytical standard of Betahistine EP Impurity C. This product is intended for research and analytical applications. Betahistine EP Impurity C (NSC19005) is an impurity of Betahistine . Betahistine is a potent, orally active and well-tolerated histamine H1 receptor agonist and H3 receptor antagonist used for the study of rheumatoid arthritis (RA) .

HY-121899R

1-Oxo Ibuprofen (Standard) Ibuprofen EP impurity J (Standard)	Drug Metabolite Reference Standards	Others
1-Oxo Ibuprofen (Standard) is the analytical standard of 1-Oxo Ibuprofen. This product is intended for research and analytical applications. 1-Oxo Ibuprofen (Ibuprofen EP impurity J) is a degradation product and a potential impurity in preparations of Ibuprofen. Ibuprofen is an anti-inflammatory inhibitor targeting COX-1 and COX-2 with IC50s of 13 μM and 370 μM, respectively .

HY-107495

*Betahistine EP Impurity* C** NSC19005	Histamine Receptor	Inflammation/Immunology
Betahistine EP Impurity C (NSC19005) is an impurity of Betahistine . Betahistine is a potent, orally active and well-tolerated histamine H1 receptor agonist and H3 receptor antagonist used for the study of rheumatoid arthritis (RA) .

HY-Z1936

*Dabigatran impurity* 29** Dabigatran impurity F	Drug Intermediate	Others
Dabigatran impurity 29 (Dabigatran impurity F) is an impurity of Dabigatran (HY-10163).

HY-Z4726

*Linagliptin impurity* 11**	Drug Intermediate	Others
Linagliptin impurity 11 (Linagliptin impurity YYJ) is an impurity of Linagliptin (HY-10284).

HY-Z3853

*Afatinib impurity* 1**	Drug Intermediate	Others
Afatinib impurity 1 (Afatinib Impurity CSEJXA) is an impurity of Afatinib (HY-10261).

HY-I0491

*Linagliptin impurity* 1**	Drug Intermediate	Others
Linagliptin impurity 1 (Bromo butene linagliptin impurity VII) is an impurity of Linagliptin (HY-10284).

HY-Z9152

*Rivaroxaban impurity* 2** Rivaroxaban starting material impurity 1	Drug Intermediate	Others
Rivaroxaban impurity 2 is an impurity of Rivaroxaban (HY-50903).

HY-Z4784

*Dacomitinib impurity* 8** Dacomitinib impurity SFXJ	Drug Intermediate	Others
Dacomitinib impurity 8 is an impurity of Dacomitinib (HY-13272).

HY-Z4785

*Dacomitinib impurity* 9** Dacomitinib impurity SFAJ	Drug Intermediate	Others
Dacomitinib impurity 9 is an impurity of Dacomitinib (HY-13272).

HY-Z7677

*Ellamod impurity* 11**	Drug Intermediate	Others
Ellamod impurity 11is an impurity of Ellamod.

HY-Z0700

*Valenklin impurity* 1**	Drug Intermediate	Others
Valenklin impurity 1 is an impurity of Valenklin.

HY-Z4463

*Arolol impurity* 1**	Drug Intermediate	Others
Arolol impurity 1 is a drug impurity.

HY-Z4756

*Estabhan impurity* 58**	Drug Intermediate	Others
Estabhan impurity 58 is a drug impurity.

Cat. No.	Product Name	Type

HY-I0959

5-Chlorouracil Fluorouracil impurity	Biochemical Assay Reagents
5-Chlorouracil (Fluorouracil Impurity) is a biochemical reagent that can be used as a biological material or organic compound for life science related research.

HY-42045

Pyrimidine-5-boronic acid pinacol ester

Biochemical Assay Reagents

Pyrimidine-5-boronic acid pinacol ester is a derivative of Boronic acid. Boronic acid is an intermediate commonly used in organic synthesis reactions and can be used as a key reagent in the Suzuki-Miyaura reaction. It generates organic free radicals through oxygen-mediated oxidation and exhibits potential mutagenic activity. Boronic acid is mainly used in research in the fields of drug synthesis and catalytic reactions. At the same time, it should be noted that it may be a genotoxic impurity (GTIs) .

HY-W035903

Ethanolamine hydrochloride

2-Aminoethanol hydrochloride

Buffer Reagents

Ethanolamine hydrochloride, is an organic compound used in various industrial applications. It is a white or colorless solid that is soluble in water and has a faint odor. One of the major uses of Ethanolamine hydrochloride is in the production of detergents and surfactants. Used as a raw material in the manufacture of compounds such as ethylenediaminetetraacetic acid (EDTA) and diethanolamine, which are commonly used in household and industrial cleaning products. Ethanolamine hydrochloride is also used in the synthesis of pharmaceuticals, agrochemicals and rubber processing agents. It acts as a buffer in certain chemical reactions, helping to adjust pH and maintain stability. Ethanolamine hydrochloride can be used for gas purification and metal corrosion inhibitor. Its ability to react with acid gases such as carbon dioxide and sulfur dioxide makes it useful for removing impurities from natural gas and other industrial gases. Overall, Ethanolamine hydrochloride is a multifunctional compound with many potential industrial applications. Its ability to act as a buffer, chelating agent, and corrosion inhibitor makes it an important tool in a variety of industries.

HY-I0959R

5-Chlorouracil (Standard) Fluorouracil impurity (Standard)	Biochemical Assay Reagents
5-Chlorouracil (Standard) is the analytical standard of 5-Chlorouracil. This product is intended for research and analytical applications. 5-Chlorouracil (Fluorouracil Impurity) is a biochemical reagent that can be used as a biological material or organic compound for life science related research.

Cat. No.	Product Name

HY-K1041

Seamless DNA Assembly Plus Kit 2 Publications Verification
MCE Seamless DNA Assembly Plus Kit contains an optimized mix of recombinase, reaction buffer, and additional cofactors that significantly improve the cloning efficiency and tolerance to impurities. This product can complete multiple DNA fragments recombination and takes only 5 minutes for single fragment, and the positive rate is more than 95%.

Cat. No.	Product Name	Category	Target	Chemical Structure

HY-113417

2-Oxoarginine α-keto-δ-Guanidinovaleric acid	Source classification	Drug Intermediate Endogenous Metabolite
2-Oxoarginine (α-keto-δ-Guanidinovaleric acid) is an Arginine impurity.

HY-112023

Lumisterol 3 (>90%) 9β,10α-Cholesta-5,7-dien-3β-ol; Cholecalciferol EP impurity C	Human Gut Microbiota Metabolites Classification of Application Fields Source classification Metabolic Disease Endogenous metabolite Disease Research Fields Steroids	Endogenous Metabolite
Lumisterol 3 (>90%) (9β,10α-Cholesta-5,7-dien-3β-ol) is a normal human secosterooid metabolite from the class of vitamin D3 photoisomer derivatives. Lumisterol 3 (>90%) is used in the preparation of vitamin D .

HY-W778546

7-epi-10-Deacetyl baccatin III	Terpenoids Source classification Taxaceae Diterpenoids Plants Taxus baccata L.	Others
7-epi-10-Deacetyl baccatin III can be isolated from the degradation impurities in Docetaxel (HY-B0011) .

HY-W778547

7-epi-10-Oxo-10-deacetyl baccatin III 10-Dehydrobaccatin V	Terpenoids Taxaceae Source classification Diterpenoids Plants Taxus baccata L.	Drug Intermediate
7-epi-10-Oxo-10-deacetyl baccatin III (10-Dehydrobaccatin V) can be isolated from the degradation impurities in Docetaxel (HY-B0011) .

HY-N16463

QS-S2	Polysaccharides Quillajaceae Quillaja saponaria Molina Source classification Plants Saccharides	Drug Intermediate
QS-S2 is the impurity of QS-21 (HY-101092A). QS-21 is a mixture of QS-21-Xyl (250643-56-2) and QS-21-Api (141256-04-4), with a ratio of 35:65. QS-21 is an innate immune system-targeted adjuvant. QS-21 is promising for research of oncology vaccines (e.g., melanoma) and infectious disease vaccines (e.g., HIV, malaria) .

HY-Z8472

Dihydromevinolin Lovastatin EP impurity E; 4a,5-Dihydromevinolin	Microorganisms Terpenoids Source classification Diterpenoids	Endogenous Metabolite HMG-CoA Reductase (HMGCR)
Dihydromevinolin is a potent hypocholesterolemic metabolite produced by Aspergillus terreus. Dihydromevinolin is a HMG-CoA reductase inhibitor .

HY-N10403R

4-Hydroxyestradiol (Standard) 4-Hydroxy-17β-estradiol (Standard)	Source classification Phenols Polyphenols Endogenous metabolite Steroids	Reference Standards Drug Metabolite Endogenous Metabolite
ABZ-amine (Standard) is the analytical standard of ABZ-amine. This product is intended for research and analytical applications. ABZ-amine (Amino albendazole) is an impurity of Albendazole. Albendazole is a member of the benzimidazole compounds used as a agent indicated for the treatment of a variety of worm infestations .

HY-W015786R

4-Ethoxyphenol (Standard)	Monophenols Source classification Phenols Endogenous metabolite	Reference Standards Bacterial
L-Amoxicillin (Standard) is the analytical standard of L-Amoxicillin. This product is intended for research and analytical applications. L-Amoxicillin is an antibiotic with activity against a wide range of bacterial infections. L-Amoxicillin is commonly used in antibacterial combinations when used in combination with the β-lactamase inhibitor potassium clavulanic acid. The related substances analysis method for L-Amoxicillin has been developed and validated according to the International Conference on Harmonization (ICH) guidelines, ensuring its effectiveness and accuracy in mixtures. L-Amoxicillin and some of its impurities have been further analyzed in stress testing and stability studies, providing support for optimizing its application .

Cat. No.	Product Name	Chemical Structure

HY-W744058

*Vardenafil Oxopiperazine (Impurity)-d6*
Vardenafil Oxopiperazine (Impurity)-d₆ is the deuterium labeled Vardenafil Oxopiperazine (Impurity).

HY-W021399S

*Lidocaine impurity* 5-d6**
Lidocaine impurity 5-d₆ is deuterium labeled Lidocaine impurity 5.

HY-142217S

*Quetiapine dimer impurity-d8*
Quetiapine dimer impurity-d₈ is the deuterium labeled Quetiapine dimer impurity .

HY-132770S

*Propafenone Dimer Impurity-d10*
Propafenone Dimer Impurity-d₁₀ is the deuterium labeled Propafenone Dimer Impurity .

HY-143954S

*Epinephrine impurity* 19-d3 hydrochloride**
Epinephrine impurity 19-d₃ (hydrochloride) is the deuterium labeled Epinephrine impurity 19 .

HY-144913S

*Bempedoic acid impurity* 1-d4**
Bempedoic acid impurity 1-d₄ is the deuterium labeled Bempedoic acid impurity 1 .

HY-143984S

*Minodronic acid impurity* 2-d4**
Minodronic acid impurity 2-d₄ is the deuterium labeled Minodronic acid impurity 2 .

HY-143988S

*Nefazodone impurity* 3-d6**
Nefazodone impurity 3-d₆ is the deuterium labeled Nefazodone impurity 3 .

HY-143938S

*Cyclobenzaprine impurity* 2-d3 hydrochloride**
Cyclobenzaprine impurity 2-d₃ (hydrochloride) is the deuterium labeled Cyclobenzaprine impurity 2 hydrochloride .

HY-143961S

*Givinostat impurity* 5-d4**
Givinostat impurity 5-d₄ is the deuterium labeled Givinostat impurity 5 .

HY-143975S

*Loxapine impurity* 2-d8**
Loxapine impurity 2-d₈ is the deuterium labeled Loxapine impurity 2 .

HY-144142S

*Orphenadrine impurity* 6-d3 hydrochloride**
Orphenadrine impurity 6-d₃ (hydrochloride) is the deuterium labeled Orphenadrine impurity 6 hydrochloride .

HY-143960S

*Givinostat impurity* 1-d10 hydrochloride**
Givinostat impurity 1-d₁₀ (hydrochloride) is the deuterium labeled Givinostat impurity 1 hydrochloride .

HY-144146S

*Pramipexole impurity* 7-d10**
Pramipexole impurity 7-d₁₀ is the deuterium labeled Pramipexole impurity 7 .

HY-143968S

*Ketotifen impurity* 3-d4**
Ketotifen impurity 3-d₄ is the deuterium labeled Ketotifen impurity 3 .

HY-144141S

*Nortriptyline impurity* 3-d3 hydrochloride**
Nortriptyline impurity 3-d₃ (hydrochloride) is the deuterium labeled Nortriptyline impurity 3 hydrochloride .

HY-143956S

*Fluorofenidone impurity* 1-d3**
Fluorofenidone impurity 1-d₃ is the deuterium labeled Fluorofenidone impurity 1 .

HY-143951S

*Disulfiram impurity* 1-d10**
Disulfiram impurity 1-d₁₀ is the deuterium labeled Disulfiram impurity 1 .

HY-143974S

*Imiquimod impurity* 1-d6**
Imiquimod impurity 1-d₆ is the deuterium labeled Imiquimod impurity 1 .

HY-143970S

*Ivabradine impurity* 7-d6**
Ivabradine impurity 7-d₆ is the deuterium labeled Ivabradine impurity 7 .

HY-143965S

*Imidacloprid impurity* 2-d4 hydrochloride**
Imidacloprid impurity 2-d₄ (hydrochloride) is the deuterium labeled Imidacloprid impurity 2-d₄ (hydrochloride) .

HY-144242S

*Voriconazole EP impurity* D-d3**
Voriconazole EP impurity D-d₃ is the deuterium labeled Voriconazole EP impurity D .

HY-143990S

*Modafinil EP impurity* B-d5**
Modafinil EP impurity B-d₅ is the deuterium labeled Modafinil EP impurity B .

HY-142592S

*Clozapine EP impurity* D-d8**
Clozapine EP impurity D-d₈ is the deuterium labeled Clozapine EP impurity D .

HY-143941S

*Hydroxychloroquine EP impurity* D-d5 dihydrochloride**
Hydroxychloroquine EP impurity D-d₅ (dihydrochloride) is the deuterium labeled Hydroxychloroquine EP impurity D dihydrochloride .

HY-144203S

*Trospium EP impurity* C-d8 chloride**
Trospium EP impurity C-d₈ (chloride) is the deuterium labeled Trospium EP impurity C chloride .

HY-143907S

*Atorvastatin EP impurity* H-d5**
Atorvastatin EP impurity H-d₅ is the deuterium labeled Atorvastatin EP impurity H .

HY-143982S

*Mianserin EP impurity* E-d4 hydrochloride**
Mianserin EP impurity E-d₄ (hydrochloride) is the deuterium labeled Mianserin EP impurity E hydrochloride .

HY-143977S

*Loxapine impurity* 3-d8 iodide**
Loxapine impurity 3-d₈ (iodide) is the deuterium labeled Loxapine impurity 3 iodide .

HY-143987S

*DM51 impurity* 1-d9**
DM51 impurity 1-d₉ is the deuterium labeled DM51 impurity 1 .

HY-143986S

*DM50 impurity* 1-d9**
DM50 impurity 1-d₉ is the deuterium labeled DM50 impurity 1 .

HY-144221S

*Tiotropium bromide EP impurity* A-d6**
Tiotropium bromide EP impurity A-d₆ is the deuterium labeled Tiotropium bromide EP impurity A .

HY-143997S

*(Rac)-Nicotine EP impurity* A-d4 hydrochloride**
(Rac)-Nicotine EP impurity A-d₄ (hydrochloride) is the deuterium labeled (Rac)-Nicotine EP impurity A hydrochloride .

HY-143986S1

*DM50 impurity* 1-d9-1**
DM50 impurity 1-d₉-1 is the deuterium labeled DM50 impurity 1 .

HY-W728503S

N-Nitroso Vonoprazan-13C,d3
N-Nitroso Vonoprazan-sup>13C,d₃ is the sup>13C- and deuterium labeled N-Nitroso Vonoprazan. N-Nitroso Vonoprazan is an impurity of Vonoprazan .

HY-143985S

*Maytansinoid DM4 impurity* 5-d6**
Maytansinoid DM4 impurity 5-d₆ is the deuterium labeled Maytansinoid DM4 impurity 5 .

HY-143992S

*Maytansinoid DM4 impurity* 2-d6**
Maytansinoid DM4 impurity 2-d₆ is the deuterium labeled Maytansinoid DM4 impurity 2 .

HY-166879S

*SAR107375E Impurity* 14-d8**
SAR107375E Impurity 14-d₈ is deuterium labeled SAR107375E Impurity 148 .

HY-143993S

*Maytansinoid DM4 impurity* 3-d6**
Maytansinoid DM4 impurity 3-d₆ is the deuterium labeled Maytansinoid DM4 impurity 3 .

HY-166878S

*SAR107375E impurity* 13-d8**
SAR107375E impurity 13-d₈ is deuterium labeled SAR107375E impurity 138 .

HY-143925S

*Betahistine impurity* 5-13C,d3**
Betahistine impurity 5- ¹³C,d₃ is the ¹³C- and deuterium labeled Betahistine impurity 5 .

HY-143964S

Irbesartan impurity 14-d4

Irbesartan impurity 14-d₄ is the deuterium labeled Irbesartan impurity 14 . Irbesartan impurity 14-d₄ is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

HY-143963S

Irbesartan impurity 20-d4

Irbesartan impurity 20-d₄ is the deuterium labeled Irbesartan impurity 20 . Irbesartan impurity 20-d₄ is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

HY-143980S

Losartan impurity 21-d4

Losartan impurity 21-d₄ is the deuterium labeled Losartan impurity 21 . Losartan impurity 21-d4 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

HY-144150S

*Pelubiprofen impurity* 2-13C2,d6**
Pelubiprofen impurity 2- ¹³C₂,d₆ is the ¹³C- and deuterium labeled Pelubiprofen impurity 2 .

HY-W178868S

*Lodoxamide impurity* 1-d5**
Lodoxamide impurity 1-d₅ is deuterium labeled n-Ethyl-2-hydroxyacetamide.

HY-W270557S

*Lodoxamide impurity* 2-d10**
Lodoxamide impurity 2-d₁₀ is deuterium labeled 2-(Diethylamino)-2-oxoacetic acid.

HY-13204S2

*rel-Biperiden EP impurity* A-d5**
rel-Biperiden EP impurity A-d₅ is deuterium labeled Biperiden (hydrochloride).

HY-13204S3

*rel-Biperiden EP impurity* B-d5**
rel-Biperiden EP impurity B-d₅ is deuterium labeled Biperiden (hydrochloride).

HY-20390S

*Lapatinib impurity* 18-d4**
Lapatinib impurity 18-d₄ is deuterium labeled 3-Chloro-4-((3-fluorobenzyl)oxy)aniline.

Cat. No.	Product Name		Classification

HY-143964S

*Irbesartan impurity* 14-d4**		Azide
Irbesartan impurity 14-d₄ is the deuterium labeled Irbesartan impurity 14 . Irbesartan impurity 14-d₄ is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

HY-143963S

*Irbesartan impurity* 20-d4**		Azide
Irbesartan impurity 20-d₄ is the deuterium labeled Irbesartan impurity 20 . Irbesartan impurity 20-d₄ is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

HY-143980S

*Losartan impurity* 21-d4**		Azide
Losartan impurity 21-d₄ is the deuterium labeled Losartan impurity 21 . Losartan impurity 21-d4 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

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