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Acidic pH

" in MedChemExpress (MCE) Product Catalog:

123

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32

Fluorescent Dye

19

Biochemical Assay Reagents

49

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4

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4

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8

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Cat. No. Product Name Target Research Areas Chemical Structure
  • HY-D1457

    Fluorescent Dye Others
    DND-189, a low-pH fluorescent probe, is sensitive to neutral and low pH range. DND-189 can be used to measure the pH of acidic organelles .
    DND-189
  • HY-D1445
    LysoSensor PDMPO
    1 Publications Verification

    Fluorescent Dye Metabolic Disease
    PDMPO, a lysosome pH indicator, is an excellent fluorescent acidotropic reagent for fluorescence imaging. PDMPO is a potent tool with which to study acidic organelles of live cells. PDMPO exhibits pH-dependent dual-excitation and dual-emission spectral peaks. PDMPO produces a blue fluorescence in weakly acidic organelles and shifts to yellow in more acidic lysosomes. (Abs=329 nm; Em=440/540 nm) .
    LysoSensor PDMPO
  • HY-B1329
    Apramycin sulfate
    3 Publications Verification

    Nebramycin II sulfate

    Bacterial Antibiotic Infection
    Apramycin (EBL 1003) sulfate is an orally active, acidic pH tolerant and aminoglycoside-modifying-enzymes-tolerant aminoglycoside antibiotic which inhibits protein biosynthesis by targeting the bacterial ribosome. Apramycin sulfate is a potential anti-drug-resistance antibiotic .
    Apramycin sulfate
  • HY-W923277

    Biochemical Assay Reagents
    Sodium sesquicarbonate hydrate is a kind of buffering agent that can stabilize pH value by neutralizing acidic substances without causing a sharp change in pH value. This property makes it widely used in many fields, especially in maintaining acid-base balance in organisms.
    Sodium sesquicarbonate hydrate
  • HY-D0305

    Fluorescent Dye Others
    Tropaeolin O is an acidic monoazo dye that undergoes a coupling reaction under pH=10.5 conditions to form a blue disazo dye. Tropaeolin O can be used for the determination of palladium(II), osmium(IV), albumin, and casein .
    Tropaeolin O
  • HY-P11055

    Bacterial Infection
    IKFQFHFD is a pH-responsive and self-assembling peptide. IKFQFHFD is biocompatible at neutral pH and becomes an antimicrobial peptide-like molecular structure only at acidic pH. IKFQFHFD can be used for chronic wounds (venous ulcers, diabetic ulcers, and pressure ulcers) induced by biofilm infections research .
    IKFQFHFD
  • HY-B1329R

    Nebramycin II sulfate (Standard)

    Reference Standards Bacterial Antibiotic Infection
    Apramycin (sulfate) (Standard) is the analytical standard of Apramycin (sulfate). This product is intended for research and analytical applications. Apramycin (EBL 1003) is an orally active, acidic pH tolerant and aminoglycoside-modifying-enzymes-tolerant aminoglycoside antibiotic which inhibits protein biosynthesis by targeting the bacterial ribosome. Apramycin is a potential anti-drug-resistance antibiotic .
    Apramycin sulfate (Standard)
  • HY-172403

    Biochemical Assay Reagents Others
    Poly-L-aspartic acid is an acidic polypeptide that functions via pH-dependent conformational changes. Poly-L-aspartic acid is promising for research of pH-responsive structural transitions in biological systems .
    Poly-L-aspartic acid
  • HY-119853

    NSC-17262

    Drug Derivative Infection
    Bayer A 139 is an ethylene-menaquinone that inactivates fowl plaque virus activity. Bayer A 139 can react with nucleic acids at pH ≦ 7 .
    Bayer A 139
  • HY-P5172

    Sodium Channel Neurological Disease
    MitTx-alpha is a subunit of MitTx. MitTx is a potent, persistent, and selective agonist for acid-sensing ion channels (ASICs). MitTx is highly selective for the ASIC1 subtype at neutral pH; under more acidic conditions (pH<6.5), MitTx massively potentiates (>100-fold) proton-evoked activation of ASIC2a channels .
    MitTx-alpha
  • HY-D1094

    SNARF 1

    Fluorescent Dye Others
    Carboxy-SNARF 1 (5/6-mixture) (SNARF 1) is a fluorescent probe that is sensitive to pH (Ex: 488 nm). Carboxy-SNARF 1 (5/6-mixture) can be used for measurement pH. Carboxy-SNARF 1 (5/6-mixture) exhibits a significant emission shift from yellow-orange (Em: 580 nm) to deep red fluorescence (Em: 640 nm) under acidic and basic conditions (pH=7-8), respectively .
    Carboxy-SNARF 1 (5/6-mixture)
  • HY-126908A

    Biochemical Assay Reagents Others
    Tetrazine-Ph-PEG17-NHS ester is a PEG derivative composed of NHS ester, which can be conjugated to amino acids or other molecules containing amino groups.
    Tetrazine-Ph-PEG17-NHS ester
  • HY-W133967

    Biochemical Assay Reagents Inflammation/Immunology
    Calcium alginate is a biopolymer that can be used for developing oral agent-delivery systems . Calcium alginate is a pH sensitive hydrogel stable in acidic media and soluble in basic media .
    Calcium alginate
  • HY-D0009

    Fluorescent Dye Others
    Bromocresol green sodium is an anionic dye. Bromocresol green sodium can be used for pH indication and DNA agarose gel electrophoresis. Bromocresol green sodium is also used in mammalian albumin measurement. Bromocresol green sodium deprotonates and produces the monoanionic form of yellow colour at lower pH (acidic condition), and produces dianionic blue colour at the basic condition .
    Bromocresol green sodium
  • HY-D0227
    THAM
    1 Publications Verification

    Tris; Tris(hydroxymethyl)aminomethane

    Biochemical Assay Reagents Metabolic Disease Cancer
    THAM (Tris) is a biologically inert amino alcohol of low toxicity, which buffers carbon dioxide and acids in vitro and in vivo. THAM is an effective amine compound for pH control in the physiological range .
    THAM
  • HY-D0227B
    THAM acetate
    1 Publications Verification

    Tris acetate; Tris(hydroxymethyl)aminomethane acetate

    Biochemical Assay Reagents Metabolic Disease Cancer
    Trometamol acetate (Tromethamine acetate) is a biologically inert amino alcohol of low toxicity, which buffers carbon dioxide and acids in vitro and in vivo. Trometamol acetate is an effective amine compound for pH control in the physiological range .
    THAM acetate
  • HY-D0227A
    THAM hydrochloride
    1 Publications Verification

    Tris HCl; Tris(hydroxymethyl)aminomethane hydrochloride

    Biochemical Assay Reagents Metabolic Disease Cancer
    THAM hydrochloride (Tris HCl) is a biologically inert amino alcohol of low toxicity, which buffers carbon dioxide and acids in vitro and in vivo. THAM hydrochloride is an effective amine compound for pH control in the physiological range .
    THAM hydrochloride
  • HY-W088068

    Fluorescent Dye Others
    Wright's stain is a composite cell stain that mainly binds to intracellular nucleic acids, proteins and other components through thiazine dyes (such as methylene blue) and eosin. Wright's stain is pH-dependent (optimal pH 6.4-6.7) and achieves cell morphology resolution by differentially staining the cytoplasm and nucleus. Under alkaline conditions, thiazine dyes bind to nucleic acids to form purple, and acidic eosin binds to cytoplasmic proteins to form red, which can form contrasting cell morphological features. Wright's stain can clearly display the fine structures of blood cells and bone marrow cells (such as nuclear chromatin and granules) and quickly evaluate cell morphological abnormalities .
    Wright's stain
  • HY-163146

    Fluorescent Dye Cancer
    TME-HYM (PH Probe) is a novel fluorescent probe based on acidic tumor microenvironment (TME) activation and organic anion transporting polypeptide (OATPs, overexpressed on cancer cells), and can be selective uptaken. TME-HYM (PH Probe) can selectively lit up cancer cells and tumor tissues, offering dual tumor selectivity for precise visualization of tumor mass .
    TME-HYM (PH Probe)
  • HY-B1571

    Fluorescent Dye Others
    Bromophenol blue is an acid phthalein dye, and it is used as a tracking dye for electrophoresis. Bromophenol blue is also used as a pH indicator, with a transition range of pH 3 to 4.6. Bromophenol blue is used as a sensor for the determination of several compounds including ammonia, drugs, proteins and amino acids. The binding of Bromophenol blue to proteins is accompanied by the appearance of a strong absorbance at 610 nm .
    Bromophenol blue
  • HY-D0219

    ThymolsulpHonepHthalein

    Fluorescent Dye Others
    Thymol blue is a reversible pH indicator that responds to the pH of the solution through structural changes of protonation and deprotonation. Thymol blue is red (HI - form) under acidic conditions and blue (I 2- form) under alkaline conditions. Quantitative detection is achieved through the absorption peak shift (435 nm/596 nm) of the UV-visible spectrum. Thymol blue selectively responds to pH changes, changing from red to yellow at pH 1.2-2.8 and from yellow to blue at pH 8.0-9.6. Thymol blue can be fixed in a silica gel matrix through sol-gel technology to form a solid-state sensor for in-situ pH measurement in the marine environment and acid-base monitoring in the biomedical field[1][2].
    Thymol blue
  • HY-167004A

    Liposome Others
    IAJD249 is an ionizable lipid. The ability of ionizable lipids to form unstable non-bilayer structures at acidic pH is key for endosomal escape and cytosolic delivery of RNA. IAJD249 can be used in the preparation of liposomes .
    IAJD249
  • HY-167004

    Liposome Others
    IAJD93 is an ionizable lipid. The ability of ionizable lipids to form unstable non-bilayer structures at acidic pH is key for endosomal escape and cytosolic delivery of RNA. IAJD93 can be used in the preparation of liposomes .
    IAJD93
  • HY-167003

    Liposome Others
    L16 is an ionizable lipid. The ability of ionizable lipids to form unstable non-bilayer structures at acidic pH is key for endosomal escape and cytosolic delivery of RNA. L16 can be used in the preparation of liposomes .
    L16
  • HY-D0227F

    Tris HCl (≥99%, reagent grade); Tris hydrochloride (≥99%, reagent grade)

    Biochemical Assay Reagents Others
    THAM hydrochloride (≥99%, reagent grade), also known as Tris-HCl, is a buffer commonly used in various biochemical and molecular biology applications to maintain a stable pH environment. Tris-HCl has unique chemical properties that allow it to resist changes in pH when acidic or basic substances are added, which makes it useful for stabilizing biological samples or reagents. It is commonly used in electrophoresis and protein purification procedures.
    THAM hydrochloride (≥99%, reagent grade)
  • HY-W040144

    Fluorescent Dye Others
    Bromocresol green is a pH-sensitive triphenylmethane dye commonly used for the determination of protein and albumin in serum. Bromocresol green is a bio-based dye with a yellow-green to blue-green color. Bromocresol green turns yellow (λmax=435 nm, protonated form) when placed in acidic solution (e.g. pH=4.15), and turns blue in basic solution (λmax=615 nm, deprotonated form). Bromocresol green is widely used as a pH indicator in the field of biochemical analysis. In addition, Bromocresol green is also used to detect the concentration of molecules such as creatinine, and to judge the viability of cells .
    Bromocresol green
  • HY-167002

    Liposome Others
    RM 137-15 is an ionizable lipid. The ability of ionizable lipids to form unstable non-bilayer structures at acidic pH is key for endosomal escape and cytosolic delivery of RNA. RM 137-15 can be used in the preparation of liposomes .
    RM 137-15
  • HY-167011

    Liposome Others
    Al-28 is an ionizable lipid. The ability of ionizable lipids to form unstable non-bilayer structures at acidic pH is key for endosomal escape and cytosolic delivery of RNA. Al-28 can be used in the preparation of liposomes .
    Al-28
  • HY-P2863

    DNase II

    Endonuclease Others
    Deoxyribonuclease II (DNase II) is an endonuclease that hydrolyzes the phosphodiester bonds of deoxyribonucleotides in native and denatured DNA, producing 3' phosphate and 5'-hydroxyl termini. Deoxyribonuclease II works best at acidic pH and is commonly used in biochemical research .
    Deoxyribonuclease II
  • HY-167015

    Liposome Others
    1O14 is an ionizable lipid. The ability of ionizable lipids to form unstable non-bilayer structures at acidic pH is key for endosomal escape and cytosolic delivery of RNA. 1O14 can be used in the preparation of liposomes .
    1O14
  • HY-17558

    Nebramycin II

    Bacterial Antibiotic Infection
    Apramycin (Nebramycin II) is an orally active, acidic pH tolerant and aminoglycoside-modifying-enzymes-tolerant aminoglycoside antibiotic which inhibits protein biosynthesis by targeting the bacterial ribosome. Apramycin is a potential anti-drug-resistance antibiotic .
    Apramycin
  • HY-103300

    Endogenous Metabolite Infection
    NPE-caged-proton is a reagent that releases protons under UV light and has the activity of activating the fusion protein GP64 under weak acidic conditions. NPE-caged-proton can promote the binding of enveloped viruses to liposome membranes with acidic phospholipids in an environment of pH 4.0 to 5.5, thereby initiating membrane fusion. The ultraviolet unblocking effect of NPE-caged-proton can lower the environmental pH, thereby triggering the process of viral membrane fusion. When studying the interaction between viruses and cell membranes, NPE-caged-proton provides a valuable tool for revealing the subtle behaviors of viruses in different chemical and biochemical environments .
    NPE-caged-proton
  • HY-D0227R

    Tris (Standard); Tris(hydroxymethyl)aminomethane (Standard)

    Biochemical Assay Reagents Reference Standards Metabolic Disease Cancer
    THAM (Standard) is the analytical standard of THAM. This product is intended for research and analytical applications. THAM (Tris) is a biologically inert amino alcohol of low toxicity, which buffers carbon dioxide and acids in vitro and in vivo. THAM is an effective amine compound for pH control in the physiological range .
    THAM (Standard)
  • HY-172692

    Liposome Cancer
    DSPE-PEG1000-TH is a PEG compound which composed of DSPE and a pH-responsive cell penetrating peptide (TH). TH is activated in an acidic environment (such as the tumor microenvironment) and can selectively carry small molecules, oligonucleotides, proteins, etc. into tumor cells .
    DSPE-PEG1000-TH
  • HY-172694

    Liposome Cancer
    DSPE-PEG5000-TH is a PEG compound which composed of DSPE and a pH-responsive cell penetrating peptide (TH). TH is activated in an acidic environment (such as the tumor microenvironment) and can selectively carry small molecules, oligonucleotides, proteins, etc. into tumor cells .
    DSPE-PEG5000-TH
  • HY-172693

    Liposome Cancer
    DSPE-PEG2000-TH is a PEG compound which composed of DSPE and a pH-responsive cell penetrating peptide (TH). TH is activated in an acidic environment (such as the tumor microenvironment) and can selectively carry small molecules, oligonucleotides, proteins, etc. into tumor cells .
    DSPE-PEG2000-TH
  • HY-D0227AR

    Tris HCl (Standard); Tris(hydroxymethyl)aminomethane hydrochloride (Standard)

    Biochemical Assay Reagents Reference Standards Metabolic Disease Cancer
    THAM (hydrochloride) (Standard) is the analytical standard of THAM (hydrochloride). This product is intended for research and analytical applications. THAM hydrochloride (Tris HCl) is a biologically inert amino alcohol of low toxicity, which buffers carbon dioxide and acids in vitro and in vivo. THAM hydrochloride is an effective amine compound for pH control in the physiological range .
    THAM hydrochloride (Standard)
  • HY-167012

    Liposome Others
    306Oi9-cis2 is an ionizable lipid. The ability of ionizable lipids to form unstable non-bilayer structures at acidic pH is key for endosomal escape and cytosolic delivery of RNA. 306Oi9-cis2 can be used in the preparation of liposomes .
    306Oi9-cis2
  • HY-W998680

    5-FITC-Maleimide

    Fluorescent Dye Others
    Fluorescein-maleimide is a fluorescein dye linker containing a maleimide group. The maleimides in Fluorescein-maleimide react with thiol-containing compounds or biomolecules to form thioester bonds between pH 6.5 and 7.5. Fluorescein-maleimide is specifically designed for fluorescent labeling of proteins, nucleic acids, or other molecules containing one or more thiol groups .
    Fluorescein-maleimide
  • HY-Y0367R

    Reference Standards Endogenous Metabolite Bacterial Infection
    Maleic Acid (Standard) is the analytical standard of Maleic Acid. This product is intended for research and analytical applications. Maleic Acid is a Glutamate Decarboxylase (GAD) inhibitor of E. coli and L. monocytogenes. IC50 & Target: GAD . In Vitro: The MICs of WT 10403S for the acids (e.g., Maleic Acid) are 34 mM, 25 mM, 31 mM and 30 mM which correspond to pH values prior to growth of 4.84, 5.14, 5.32 and 5.02 respectively. Of all compounds tested, Maleic Acid is the least inhibitory despite acting at a lower pH (4.84). The most acid resistant (10403S) and the weakest (EGD-e) strain are challenged with 8.6 mM and 4.3 mM of each organic acid at pH 3 and 3.3 respectively. On both strains, Maleic Acid is the most bactericidal .
    Maleic Acid (Standard)
  • HY-145576B

    Fluorescent Dye Others
    2-Amino-8-oxononanoic acid (hydrochloride) is the hydrochloride form of 2-Amino-8-oxononanoic acid. 2-Amino-8-oxononanoic acid is an amino acid, incorporation into proteins in E.coli in genetic. 2-Amino-8-oxononanoic acid is efficient in labeling of proteins with different probes with a site-specific manner under a mild condition close to the physiological pH .
    2-Amino-8-oxononanoic acid hydrochloride
  • HY-145576

    Fluorescent Dye Others
    2-Amino-8-oxononanoic acid is an amino acid, incorporation into proteins in E.coli in genetic. 2-Amino-8-oxononanoic acid is efficient in labeling of proteins with different probes with a site-specific manner under a mild condition close to the physiological pH .
    2-Amino-8-oxononanoic acid
  • HY-P5174

    Sodium Channel Neurological Disease
    MitTx is a complex formed by MitTx-α and MitTx-β. MitTx is an ASIC1 channel activator with EC50 values of 9.4 and 23 nM for ASIC1a and ASIC1b isoforms, respectively. MitTx is highly selective for ASIC1 isoforms at neutral pH. Under acidic conditions, MitTx greatly enhances proton-evoked ASIC2a channel activation .
    MitTx
  • HY-128144
    Lalistat 2
    2 Publications Verification

    Lipase Metabolic Disease
    Lalistat 2 is an inhibitor of many lipases especially Lysosomal acid lipase (LAL, IC50 = 152 nM), which is a key enzyme that degrades neutral lipids at an acidic pH in lysosomes. Lalistat 2 is commonly used to investigate the cell-specific functions of LAL and LAL deficiency in vitro, as well as specifically measure LAL activity in human blood samples or cells .
    Lalistat 2
  • HY-W110794

    Biochemical Assay Reagents Others
    Crystal violet, IND (0.0-2.0) is a specialized indicator suitable for strongly acidic systems, which reflects changes in pH within the range of 0.0-2.0 through color changes. Crystal violet, IND (0.0-2.0) is widely used in acid-base titration, chemical analysis, and industrial testing fields .
    Crystal violet, IND (0.0-2.0)
  • HY-W110798
    Bromophenol blue indicator (3.0-4.6)
    1 Publications Verification

    Biochemical Assay Reagents Others
    Bromophenol blue indicator (3.0-4.6) is a synthetic dye commonly used as an acid-base indicator with a transition range of pH 3.0-4.6. Bromophenol blue indicator (3.0-4.6) is water soluble and changes color from yellow to blue as the pH of the solution changes from acidic to basic. Its unique chemical properties make it an important ingredient in a variety of scientific applications, especially in biochemistry and molecular biology. In addition, it can be used as a stain in microbiology and histology. However, Bromophenol blue indicator (3.0-4.6) has potential irritating and staining properties.
    Bromophenol blue indicator (3.0-4.6)
  • HY-D0897

    N-(1-NapHthyl)-3-aminopropanesulfonic acid sodium

    Biochemical Assay Reagents Others
    3-(1-naphthalenylamino)-1-Propanesulfonic acid sodium salt is a compound belonging to the class of sulfonic acids. It is commonly used in the pharmaceutical industry as a buffer and stabilizer for drugs and other medicines. 3-(1-naphthalenylamino)-1-Propanesulfonic acid sodium salt helps to maintain the pH and stability of the drug, thereby improving the efficacy and shelf life of the drug. It can also be used as a dispersant in the production of nanoparticles and other materials.
    3-(1-naphthalenylamino)-1-Propanesulfonic acid sodium salt
  • HY-138540
    1-Dodecylimidazole
    2 Publications Verification

    N-Dodecylimidazole

    Fungal Cancer
    1-Dodecylimidazole (N-Dodecylimidazole) is a lysosomotropic detergent and a cytotoxic agent. 1-Dodecylimidazole causes cell death by its acid-dependent accumulation in lysosomes, disruption of the lysosomal membrane, and releaseof cysteine proteases into the cytoplasm. 1-Dodecylimidazole has hypocholesterolaemic activity and broad-spectrum antifungal activity .
    1-Dodecylimidazole
  • HY-138540R

    Fungal Cancer
    1-Dodecylimidazole (Standard) is the analytical standard of 1-Dodecylimidazole. This product is intended for research and analytical applications. 1-Dodecylimidazole (N-Dodecylimidazole) is a lysosomotropic detergent and a cytotoxic agent. 1-Dodecylimidazole causes cell death by its acid-dependent accumulation in lysosomes, disruption of the lysosomal membrane, and releaseof cysteine proteases into the cytoplasm. 1-Dodecylimidazole has hypocholesterolaemic activity and broad-spectrum antifungal activity .
    1-Dodecylimidazole (Standard)
  • HY-B1422
    9-Aminoacridine
    3 Publications Verification

    Aminacrine

    Bacterial HIV Infection
    9-Aminoacridine, a fluorescent probe, acts as an indicator of pH for quantitative determination of transmembrane pH gradients (inside acidic). 9-Aminoacridine is an antimicrobial. 9-Aminoacridine exerts its antimicrobial activity by interacting with specific bacterial DNA and disrupting the proton motive force in K. pneumoniae. 9-Aminoacridine is a HIV-1 inhibitor and inhibits HIV LTR transcription highly dependent on the presence and location of the amino moiety. 9-Aminoacridine inhibits virus replication in HIV-1 infected cell lines. 9-Aminoacridine is used as a Rifampin (RIF; HY-B0272) adjuvant for the multidrug-resistant K. pneumoniae infections .
    9-Aminoacridine

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