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covalent labeling

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77

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31

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4

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3

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20

Isotope-Labeled Compounds

11

Click Chemistry

Cat. No. Product Name Target Research Areas Chemical Structure
  • HY-151645

    ADC Linker Others
    Alkyne-SNAP (compound 3) is an Alkyne-conjugated benzylguanine. The benzylguanine moiety reacts with the SNAP-tag, allowing irreversible and covalent labeling of SNAP fusion proteins with an additional alkyne functionality for further click chemistry conjugation .
    Alkyne-SNAP
  • HY-122609

    PF-6808472

    CDK Cancer
    XO44 (PF-6808472) is a broad-spectrum covalent kinase probe. XO44 can bind in CDK2 and CDK1. XO44 also labels CDK4 proteins in cells .
    XO44
  • HY-123749

    5-TMRIA

    Fluorescent Dye Others
    Tetramethylrhodamine-5-iodoacetamide (5-TMRIA) is a thiol-selective reactive dye that is used to non-specifically label proteins via the cysteine residues. Tetramethylrhodamine-5-iodoacetamide (5-TMRIA) can be used to covalently label DNA fragments .
    Tetramethylrhodamine-5-iodoacetamide
  • HY-D2956

    CLIP-GLA-NHS

    Biochemical Assay Reagents Others
    BC-GLA-NHS is a NHS-labeled CLIP tag, which is an amine-reactive crosslinker and can achieve site-specific protein labeling. The NHS ester of BC-GLA-NHS reacts with the primary amine of the target molecule (such as antibodies, quantum dots) in a pH 7.5-8.5 buffer solution to form a stable amide bond. After coupling, the BC molecule undergoes a nucleophilic substitution reaction with the active site (Cys) of the CLIP-tagged fusion protein, releasing benzylcytosine and forming an irreversible thioether bond, achieving covalent labeling. BC-GLA-NHS can be used for click chemistry labeling .
    BC-GLA-NHS
  • HY-D2961

    Fluorescent Dye Others
    SiR-CLIP is a SiR-carboxyl derivative used for covalent fluorescent labeling of CLIP tags .
    SiR-CLIP
  • HY-D2933

    Fluorescent Dye Others
    SNAP-505 is a green fluorescent O6 benzylguanine derivative. SNAP-505 labels SNAP-tagged proteins covalently. SNAP-505 can be used to label cells (green) .
    SNAP-505
  • HY-118112

    Biochemical Assay Reagents Others
    4-N-Maleimidobenzoicacid-NHS is a PEG linker that finds utility in bioconjugation endeavors and protein labeling ventures. Specifically designed for selective reaction with thiol groups, the maleimide group establishes covalent linkages, thereby facilitating the coupling of proteins, peptides, or diverse molecules to thiol-bearing biomolecules. The NHS ester is able to react specifically and efficiently with primary amines (e.g. the side chain of lysine residues or aminosilane-coated surfaces) at neutral or slightly basic conditions to form a covalent bond.
    4-N-Maleimidobenzoicacid-NHS
  • HY-D2941

    SNAP-AF

    Fluorescent Dye Others
    BGAF is a fluorescent diacetyl fluorescein-labeled SNAP tag fluorescent probe, specifically designed for the covalent labeling of SNAP-tag fusion proteins in living cells. BGAF utilizes the specific reaction of the human DNA repair protein hAGT to achieve specific fluorescent labeling of the target protein in the living cell environment .
    BGAF
  • HY-D2170

    Fluorescent Dye Others
    AF488 streptavidin is a fluorescence labeled streptavidin. AF488 streptavidin comprises a biotin-binding protein (streptavidin) covalently attached to a fluorescent label (AF488). AF488 is a bright, photostable green fluorophore, exhibits the λem and λex wavelength of 520 nm and 470 nm, respectively .
    AF488 streptavidin
  • HY-P11307

    Proteasome Others
    Biotin-epoxomicin is a biotin labeled Epoxomicin (HY-13821). Biotin-epoxomicin is a high affinity probe targeting Proteasome. Biotin-epoxomicin covalently binds to multiple proteasome catalytic subunits (such as LMP7, Z and MECL1) .
    Biotin-epoxomicin
  • HY-W018161S

    Endogenous Metabolite Others
    Hexadecanedioic acid-d28 is the deuterium labeled Hexadecanedioic acid. Hexadecanedioic acid is covalently linked to Sepharose 4B, shows better performance in terms of specificity than dye-based resins and could be used for depletion of SA from plasma samples.
    Hexadecanedioic acid-d28
  • HY-126943

    Fluorescent Dye Others
    SAHA-BPyne is an activity-based protein profiling (ABPP) probe for detecting HDAC activity, which covalently labels the proximal proteins through a photoactivation. SAHA-BPyne inhibits HDAC activity in HeLa nuclear lysate with an IC50 of less than 5 μM .
    SAHA-BPyne
  • HY-W355129S

    Isotope-Labeled Compounds Cancer
    MeIQx-d3 is the deuterium labeled MeIQx (HY-W355129) . MeIQx is a heterocyclic amine (HAs) compound and a dietary aromatic amine, which can bind covalently to hemoglobin. MeIQx is a mutagenic compound that induces liver tumors .
    MeIQx-d3
  • HY-16293S

    PM01183-d3; LY-01017-d3

    DNA Alkylator/Crosslinker DNA/RNA Synthesis Cancer
    Lurbinectedin-d3 is deuterium labeled Lurbinectedin. Lurbinectedin (PM01183) is a DNA minor groove covalent binder with potent anti-tumour activity; inhibits RMG1 and RMG2 cell growth with IC50 values of 1.25 and 1.16 nM, respectively .
    Lurbinectedin-d3
  • HY-D2171

    Fluorescent Dye Others
    AF488 DBCO is a fluorescent dye that labels azide-containing biomolecules. DBCO is the bioorthogonal partner of azide that allows covalent coupling in the absence of copper. AF488 is a bright, photostable green fluorophore. AF488 exhibits the λem and λex wavelength of 520 nm and 470 nm, respectively .
    AF488 DBCO
  • HY-D0152

    Fluorescent Dye Others
    Tetramethylrhodamine-6-maleimide is a fluorescent dye with a reactive sulfhydryl-specific moiety is covalently coupled to this cysteine. Tetramethylrhodamine-6-maleimide can be used as labels to detect local protein motions of the fully active Na+/K+-ATPase in real time .
    Tetramethylrhodamine-6-maleimide
  • HY-D2150

    Fluorescent Dye Others
    AF 430 maleimide is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF 430 maleimide contains maleimide groups that react with thiol groups to form covalent bonds. To achieve specific coupling of dye labels and biomolecules .
    AF 430 maleimide
  • HY-D0056
    5-Carboxyfluorescein diacetate N-succinimidyl ester
    Maximum Cited Publications
    9 Publications Verification

    Fluorescent Dye Others
    5-Carboxyfluorescein diacetate N-succinimidyl ester is a cell permeable dye (Ex=492 nm, Em=517 nm). 5-Carboxyfluorescein diacetate N-succinimidyl ester can label cells by covalently binding to intracellular molecules. 5-Carboxyfluorescein diacetate N-succinimidyl ester is used to track lymphocyte migration and proliferation .
    5-Carboxyfluorescein diacetate N-succinimidyl ester
  • HY-177554

    Biochemical Assay Reagents Cancer
    KB05yne is a site-selective, alkyne-functionalized electrophilic "scout" fragment probe designed for covalent ligand discovery, with preferential reactivity toward specific cysteine residues in proteins. KB05yne strongly labels wild-type forms of target proteins (e.g., CDKN2AIP, HPCAL1) but not their cysteine-to-alanine mutants, confirming site-specific cysteine reactivity. KB05yne can be used for site-specific covalent ligand discovery and optimization for structurally and functionally diverse proteins, particularly in studies targeting cysteine residues in cancer-related or difficult-to-purify proteins .
    KB05yne
  • HY-W010482S

    Isotope-Labeled Compounds Cancer
    3-Ethylaniline-d5 is the deuterium labeled 3-Ethylaniline (HY-W010482). 3-Ethylaniline is metabolized in vivo to electrophilic intermediates that covalently bind to DNA and that adducts are formed in the DNA of bladder. 3-Ethylaniline can be used for the research of bladder cancer .
    3-Ethylaniline-d5
  • HY-D2926

    BG-Tz; SNAP-Tetrazine

    Biochemical Assay Reagents Others
    BG-Tetrazine is a SNAP tag substrate that contains a methyl tetrazine group. BG-Tetrazine can specifically covalently label the target protein of the intracellular SNAP-tag fusion. The tetrazine group it carries can rapidly and efficiently undergo a bioorthogonal reaction with functional groups such as trans cyclooctene (TCO), thereby enabling multiple labeling, functionalization or enrichment of proteins. BG-Tetrazine can be applied in click chemistry .
    BG-Tetrazine
  • HY-114436S

    Isotope-Labeled Compounds Cancer
    MRTX-1257-d6 is the deuterium labeled MRTX-1257 (HY-114436). MRTX-1257 is a selective, irreversible, covalent and orally active KRAS G12C inhibitor, with an IC50 of 900 pM for KRAS dependent ERK phosphorylation in H358 cells .
    MRTX-1257-d6
  • HY-D2323

    Fluorescent Dye Others
    ER-PhotoFlipper 32 is a ER tracker. ER-PhotoFlipper 32 can selectively label the inner leaflet of the plasma membrane with Flipper-TR 5 (HY-D2318). The ER-tracker attaches the PhotoFlipper covalently to the outer surface of the ER. ER-PhotoFlipper 32 can be applied to access plasma membrane asymmetry .
    ER PhotoFlipper 32
  • HY-D1870

    Fluorescent Dye Others
    Sulfo-Cy3-PEG3-biotin potassium is a biotin-modified derivative of Cy3 (Cyanine3) (HY-D0822) dye containing a TCO group. The TCO group of Sulfo-Cy3-PEG3-biotin potassium reacts with the tetrazine functional group in highly specific click chemistry to form a covalent bond. Thus, Sulfo-Cy3-PEG3-biotin potassium can be covalently bound to some biomolecules (especially antibodies, proteins, etc.) to track their location and dynamic changes in biological samples. And because it is labeled with biotin, it is often used in affinity chromatography experiments, such as immunoprecipitation.
    Sulfo-Cy3-PEG3-biotin potassium
  • HY-D2925

    dTCO-SNAP

    Biochemical Assay Reagents Others
    dTCOBG is a SNAP-tag reactive benzylguanine (BG) analogue specifically designed for the specific labeling of immune cells. dTCOBG forms a stable thioether bond through the cysteine at the active site of SNAP-tag and O6-benzylguanine, resulting in a covalent linkage. dTCOBG demonstrates unique advantages in the labeling of macrophages derived from ER-HoxB8: it only labels SNAP-tag + macrophages, with no background signal in the control group. dTCOBG can be used for click chemistry labeling .
    dTCOBG
  • HY-114299S

    SNAC-d4 sodium

    Isotope-Labeled Compounds Others
    Salcaprozate-d4 (sodium) is a deuterated labeled Salcaprozate (sodium) . Salcaprozate sodium (SNAC), an oral absorption promoter, and has the potential as a delivery agent for oral forms of heparin and insulin. Salcaprozate sodium could increase passive transcellular permeation across small intestinal epithelia based on increased lipophilicity arising from non-covalent macromolecule complexation .
    Salcaprozate-d4 sodium
  • HY-D2154

    Fluorescent Dye Others
    AF 430 carboxylic acid is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF 430 carboxylic acid can form covalent bonds through a condensation reaction between carboxylic acid groups and molecules containing amino groups. To achieve specific coupling of dye labels and biomolecules .
    AF 430 carboxylic acid
  • HY-D2163

    Fluorescent Dye Others
    AF 430 amine is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF 430 amine can form covalent bonds through a condensation reaction between amino groups and molecules containing carboxyl groups. To achieve specific coupling of dye labels and biomolecules .
    AF 430 amine
  • HY-105129AS

    Isotope-Labeled Compounds Cancer
    Pimonidazole-d10 is the deuterium labeled Pimonidazole. Pimonidazole is a novel hypoxia marker for complementary study of tumor hypoxia and cell proliferation in tumor . Pimonidazole accumulates in hypoxic cells via covalent binding with macromolecules or by forming reductive metabolites after reduction of its nitro group, it can be used for qualitative and quantitative assessment of tumor hypoxia .
    Pimonidazole-d10
  • HY-15772S1

    AZD-9291-13C,d3; Mereletinib-13C,d3

    EGFR Cancer
    Osimertinib- 13C,d3 is the deuterium and 13C labeled Osimertinib. Osimertinib (AZD9291) is a covalent, orally active, irreversible, and mutant-selective EGFR inhibitor with an apparent IC50 of 12 nM against L858R and 1 nM against L858R/T790M, respectively.
    Osimertinib-13C,d3
  • HY-148958

    Biochemical Assay Reagents Others
    SNAP-Biotin is a biotin-labeled SNAP tag probe. SNAP-Biotin can be used for protein biotinylation .
    SNAP-Biotin
  • HY-164725

    Radionuclide-Drug Conjugates (RDCs) FAP Cancer
    FAPI-mFS is an irreversible fibroblast activation protein (FAP) inhibitor, that enhances the uptake and retention time in cancer cells through its covalent binding property for FAP. FAPI-mFS can be used for cancer imaging the therapy, when labeled with radioactive 68Ga or 177Lu . FAPI-mFS can be used for the synthesis/research of Radionuclide-Drug Conjugates (RDCs).
    FAPI-mFS
  • HY-14879S2

    NXL-104-13C5

    Isotope-Labeled Compounds Antibiotic Beta-lactamase Bacterial Infection
    Avibactam sodium salt- 13C5 (NXL-104- 13C5) is 13C labeled Avibactam (sodium). Avibactam sodium (NXL-104) is a covalent and reversible non-β-lactam β-lactamase inhibitor which inhibits β-lactamase TEM-1 and CTX-M-15 with IC50s of 8 nM and 5 nM, respectively .
    Avibactam sodium salt-13C5
  • HY-W053709A

    (4-(1,2,4,5-Tetrazin-3-yl)phenyl)methanamine monohydrochloride; Tetrazine-NH2 monohydrochloride

    Biochemical Assay Reagents Cancer
    Tetrazine-Amine monohydrochloride is the monohydrochloride form of Tetrazine-Amine (HY-W053709). Tetrazine-amine is a Tetrazine linker that can be used to covalently label living cells by cycloaddition . Tetrazine-Amine (monohydrochloride) is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.
    Tetrazine-Amine monohydrochloride
  • HY-W739603

    Fluorescent Dye Others
    Cy5-bifunctional dye potassium is a water soluble bifunctional dye possessing two terminal NHS ester functions. The NHS esters can react specifically and efficiently with primary amines such as the side chain of lysine residue or aminosilane-coated surfaces at neutral or slight basic conditions to form a covalent bond. The dye is useful for the cross-conjugation of amines, and for other advanced labeling applications.
    Cy5-bifunctional dye potassium
  • HY-112697

    Biochemical Assay Reagents Others
    Rhodamine B isothiocyanate (RBITC) is a fluorescent dye commonly used in biological imaging and labeling applications. It has an isothiocyanate functional group that can be covalently attached to amino groups on proteins and other biomolecules, making it useful for fluorescent labeling of cells and tissues. RBITC fluoresces bright orange-red under green light excitation, which makes it easy to detect and track labeled molecules in complex samples. Due to its stability and sensitivity, RBITC has been widely used in various research fields, including cell biology, immunology, and neurobiology.
    Rhodamine B isothiocyanate
  • HY-15772S

    AZD-9291-d6; Mereletinib-d6

    EGFR Cancer
    Osimertinib-d6 is a deuterium labeled osimertinib. Osimertinib is a covalent, orally active, irreversible, and mutant-selective EGFR inhibitor with an apparent IC50 of 12 nM against L858R and 1 nM against L858R/T790M. Osimertinib overcomes T790M-mediated resistance to EGFR inhibitors in lung cancer .
    Osimertinib-d6
  • HY-W615327

    Biochemical Assay Reagents Others
    Bis-sulfone NHS Ester is a bis-alkylating labeling reagent that is selective for the cysteine sulfur atoms from a native disulfide. These reagents undergo bis-alkylation to conjugate both thiols derived from the two cysteine residues of a reduced native disulfide bond such as the interchain disulfide bonds of an antibody. The reaction results in covalent rebridging of the disulfide bond via a three carbon bridge leaving the protein structurally intact.
    Bis-sulfone NHS ester
  • HY-W053709

    (4-(1,2,4,5-Tetrazin-3-yl)phenyl)methanamine; Tetrazine-NH2

    Biochemical Assay Reagents Cancer
    Tetrazine-Amine ((4-(1,2,4,5-Tetrazin-3-yl)phenyl)methanamine) is a tetrazine linker that can be used to covalently label live cells through a cycloaddition . Tetrazine-Amine is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.
    Tetrazine-Amine
  • HY-D2171A

    Fluorescent Dye Others
    AF488 DBCO ditriethylamine is the ditriethylamine salt form of AF488 DBCO (HY-D2171). AF488 DBCO ditriethylamine is a fluorescent dye that labels azide-containing biomolecules. DBCO is the bioorthogonal partner of azide that allows covalent coupling in the absence of copper. AF488 is a bright, photostable green fluorophore. AF488 exhibits the λem and λex wavelength of 520 nm and 470 nm, respectively .
    AF488 DBCO ditriethylamine
  • HY-172291

    ADC Linker Cancer
    Mal-amide-PEG8-Val-Cit-PAB-PNP is a cleavable ADC linker featuring a maleimide, a PEG spacer, a Val-Cit dipeptide, a PAB. and a PNP carbonate. Maleimide is a thiol-specific covalent linker which is used to label cysteine residues in proteins while the PNP group acts as a highly activated leaving group. Val-Cit linkers are cleaved by cytoplasmic peptidases.
    Mal-amide-PEG8-Val-Cit-PAB-PNP
  • HY-D1878

    Glycosidase Fluorescent Dye Metabolic Disease
    SPiDER-βGal-1 is a fluorogenic β-galactosidase substrate and suitable for labeling live cells in culture and in living tissues. SPiDER-βGal-1 can generate quinone methide through enzymatic reaction and form covalent bonds with nucleophilic functional groups of proteins near the molecule, so that the fluorescent product is fixed in living cells (Ex/Em = 493, 525 nm/560 nm) .
    SPiDER-βGal-1
  • HY-D1879

    Glycosidase Fluorescent Dye Metabolic Disease
    SPiDER-βGal-2 is a fluorogenic β-galactosidase substrate and suitable for labeling live cells in culture and in living tissues. SPiDER-βGal-2 can generate quinone methide through enzymatic reaction and form covalent bonds with nucleophilic functional groups of proteins near the molecule, so that the fluorescent product is fixed in living cells (Ex/Em = 493, 525 nm/560 nm) .
    SPiDER-βGal-2
  • HY-W653970

    Azacitidine-15N4; 5-AzaC-15N4; Ladakamycin-15N4

    Isotope-Labeled Compounds Antibiotic DNA Methyltransferase Organoid Autophagy Nucleoside Antimetabolite/Analog Bacterial Infection
    5-Azacytidine- 15N4 is 13C and 15N labeled 5-Azacytidine. 5-Azacytidine (Azacitidine; 5-AzaC; Ladakamycin) is a nucleoside analogue of cytidine that specifically inhibits DNA methylation. 5-Azacytidine is incorporated into DNA to covalently trap DNA methyltransferases and contributes to reverse epigenetic changes. 5-Azacytidine induces cell autophagy .
    5-Azacytidine-15N4
  • HY-175744

    PSMA Cancer
    PSMA-MAL-5 is a PSMA ligand. PSMA-MAL-5 covalently binds to Cys466 of PSMA. PSMA-MAL-5 labeled with 177Lu and 225Ac has high radiostability and tumor uptake. PSMA-MAL-5 also effectively inhibits tumor growth. PSMA-MAL-5 can be used for SPECT/CT imaging and radionuclide therapy of prostate cancer .
    PSMA-MAL-5
  • HY-W800839

    Biochemical Assay Reagents Others
    TCO-PEG4-TFP Ester is an amine-reactive labeling reagent used to modify proteins, antibodies, and other amine-containing biopolymers. A 2,3,5,6-tetrafluorophenol (TFP) is a reactive ester that displays much better stability toward hydrolysis in aqueous media resulting in more efficiency and better reproducible labeling of biopolymers. TFP ester of carboxylic acids react with primary amines at the same rate as NHS ester forming covalent amide bond that is identical to one formed by the reaction between primary amines and NHS esters or sulfo-NHS esters.
    TCO-PEG4-TFP ester
  • HY-79647

    N-(Fmoc-oxy)succinimide

    Biochemical Assay Reagents Others
    Fmoc-OSu (N-(Fmoc-oxy)succinimide) is an acylating agent that targets amino groups (-NH2). It can selectively protect the amino groups of amino acids by covalently binding with primary or secondary amines through nucleophilic substitution reactions. Fmoc-OSu forms a stable amide bond with the amino group to avoid side reactions of the amino group in peptide synthesis. It can also be used as a fluorescent labeling reagent to react with glycosylamines for efficient labeling of N-sugar chains. Fmoc-OSu can be used as an Fmoc protection strategy in peptide synthesis, and as a fluorescent labeling and analysis method for N-sugar chains .
    Fmoc-OSu
  • HY-W779191

    2-Amino-3,8-dimethylimidazo[4,5-f]quinoxaline-2-13C

    Isotope-Labeled Compounds Cytochrome P450 Cancer
    MeIQx- 13C (2-Amino-3,8-dimethylimidazo[4,5-f]quinoxaline-2- 13C) is the 13C-labeled MeIQx (HY-W355129). MeIQx, a dietary aromatic amine, is mutagenic compound could be isolated from present in fried beef and beef extracts. MeIQx binds covalently to hemoglobin. MeIQx induces liver tumors .
    MeIQx-13C
  • HY-158008

    Ras Cancer
    (R)-G12Di-7 is a covalent ligand for KRAS-G12D, which selectively labels K-Ras-G12D·GDP and K-Ras-G12D·GppNHp. (R)-G12Di-7 exhibits inhibitory activity against G12D mutated cancer cells .
    (R)-G12Di-7
  • HY-D1886

    Fluorescent Dye Others
    Vari Fluor 647 SE is a fluorescent dye, SE stands for "succinimidyl ester". Vari Fluor 647 SE belongs to the Vari Fluor family of labeling reagents used in cell and molecular biology research. Vari Fluor 647 SE can react with an amino group to form a covalent bond, thereby introducing Vari Fluor 647 dye into the target molecule or cell. Vari Fluor 647 SE is a reactive dye that produces a fluorescent signal after binding to a target molecule or cell.
    Vari Fluor 647 SE

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