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CAS 71-00-1

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L-Histidine

Description:
L-Histidine is an essential amino acid that plays a crucial role in various biological processes. It is classified as a polar, positively charged amino acid due to the presence of an imidazole side chain, which can participate in hydrogen bonding and metal ion coordination. L-Histidine is involved in the synthesis of proteins and is a precursor for histamine, a vital neurotransmitter. It has a pKa value around 6.0, indicating that it can act as both an acid and a base, making it important in buffering systems within biological fluids. This amino acid is also known for its role in enzyme catalysis and is found in hemoglobin, contributing to oxygen transport in the blood. L-Histidine is soluble in water and has a relatively high melting point. It is commonly found in dietary sources such as meat, fish, dairy products, and certain grains, making it essential for human health, particularly in growth and tissue repair.
Formula:C6H9N3O2
InChI:InChI=1S/C6H9N3O2/c7-5(6(10)11)1-4-2-8-3-9-4/h2-3,5H,1,7H2,(H,8,9)(H,10,11)/t5-/m0/s1
InChI key:InChIKey=HNDVDQJCIGZPNO-YFKPBYRVSA-N
SMILES:C([C@@H](C(O)=O)N)C1=CN=CN1
Synonyms:
  • (2S)-2-Amino-3-(1H-imidazol-4-yl)propanoic acid
  • (2S)-2-Azaniumyl-3-(1H-imidazol-5-yl)propanoate
  • (S)-2-Amino-3-(1H-imidazol-4-yl)propanoic acid
  • (S)-4-(2-Amino-2-carboxyethyl)imidazole
  • (S)-Histidine
  • (S)-α-Amino-1H-imidazole-4-propanoic acid
  • 103: PN: WO2021061872 SEQID: 103 claimed protein
  • 124: PN: WO2020191245 SEQID: 252 claimed protein
  • 1H-Imidazole-4-alanine, (S)-
  • 1H-Imidazole-4-propanoic acid, α-amino-, (S)-
  • See more synonyms
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products per page.Found 22 products.
  • L-Histidine

    CAS:
    Formula:C6H9N3O2
    Purity:>99.0%(T)(HPLC)
    Color and Shape:White to Almost white powder to crystal
    Molecular weight:155.16

    Ref: 3B-H0149

    25g
    22.00€
    250g
    108.00€
  • H-His-OH

    CAS:
    <p>M02982 - H-His-OH</p>
    Formula:C6H9N3O2
    Purity:98%
    Color and Shape:Solid, White to almost white powder
    Molecular weight:155.157

    Ref: 10-M02982

    1kg
    150.00€
    25g
    24.00€
    100g
    28.00€
    250g
    53.00€
    500g
    79.00€
  • L-Histidine, 98+%

    CAS:
    <p>L-Histidine acts as a precursor to histamine and a component of carnosine. It is also used in medicine, feed additive, biochemical research, dietary supplement. It is used in a nutrition enhancer, is the amino acid fluid infusion. It can be used in the treatment of gastric ulcer. This Thermo Scienti</p>
    Formula:C6H9N3O2
    Purity:98+%
    Color and Shape:Crystals or powder or crystalline powder, White
    Molecular weight:155.16

    Ref: 02-A10413

    25g
    29.00€
    100g
    92.00€
    500g
    367.00€
  • H-His-OH

    CAS:
    <p>Bachem ID: 4030670.</p>
    Formula:C6H9N3O2
    Purity:> 99%
    Color and Shape:White
    Molecular weight:155.16

    Ref: 01-4030670

    250g
    146.00€
  • HISTIDINE CRS

    CAS:
    <p>HISTIDINE CRS</p>
    Formula:C6H9N3O2
    Molecular weight:155.1546

    Ref: 41-H0750000

    25mg
    115.00€
  • L-Histidine

    CAS:
    <p>Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure nesoi</p>
    Formula:C6H9N3O2
    Color and Shape:White Crystals Crystalline Powder
    Molecular weight:155.15 g/mol
  • H-His-OH

    CAS:
    Formula:C6H9N3O2
    Purity:98%
    Color and Shape:Solid
    Molecular weight:155.1546

    Ref: IN-DA003RA3

    10g
    22.00€
    25g
    22.00€
    50g
    28.00€
    100g
    28.00€
    250g
    57.00€
    500g
    73.00€
  • L-Histidine

    CAS:
    <p>L-Histidine</p>
    Purity:≥98%
    Molecular weight:155.15g/mol

    Ref: 54-BUP18742

    1g
    76.00€
    500mg
    66.00€
  • L-Histidine, 99%

    CAS:
    Formula:C6H9N3O2
    Purity:(Titration) ≥ 99.0%
    Color and Shape:White to off-white powder
    Molecular weight:155.16

    Ref: 7W-GM5566

    1kg
    311.00€
    25g
    27.00€
    100g
    59.00€
    250g
    104.00€
    500g
    175.00€
    100kg
    12,745.00€
  • L-Histidine

    CAS:
    <p>L-Histidine</p>
    Formula:C6H9N3O2
    Purity:98.5%
    Color and Shape: white to off white powder
    Molecular weight:155.15g/mol

    Ref: 54-BIH0710

    1kg
    251.00€
    5kg
    1,126.00€
    100g
    32.00€
    10kg
    2,072.00€
    500g
    133.00€
    2.5kg
    581.00€
  • Histidine (Serine EP Impurity C)

    CAS:
    Formula:C6H9N3O2
    Molecular weight:155.16

    Ref: 4Z-H-018004

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • L-Histidine, Ph. Eur., USP grade

    CAS:
    Formula:C6H9N3O2
    Purity:≤ 0.2%
    Color and Shape:White crystalline powder
    Molecular weight:155.16

    Ref: 7W-GM1595

    1kg
    373.00€
    25g
    33.00€
    100g
    76.00€
    250g
    130.00€
    500g
    222.00€
    940g
    346.00€
    1880g
    589.00€
  • Histidine (L-Histidine)

    CAS:
    Formula:C6H9N3O2
    Color and Shape:Neat
    Molecular weight:155.15

    Ref: 86-MM1526.00

    250mg
    1,484.00€
  • L-Histidine

    CAS:
    Formula:C6H9N3O2
    Color and Shape:Neat
    Molecular weight:155.15

    Ref: 04-C14213200

    100mg
    123.00€
  • L-Histidine

    CAS:
    Formula:C6H9N3O2
    Purity:95%~99%
    Molecular weight:155.157

    Ref: BP-BP3542

    ne
    To inquire
  • L-Histidine base (Ph. Eur., USP) pure

    CAS:
    <p>L-Histidine base (Ph. Eur., USP) pure</p>
    Purity:Pharma Grade
    Color and Shape:Solid
    Molecular weight:155.15455g/mol

    Ref: 54-BIA1341

    100g
    75.00€
    250g
    164.00€
    500g
    274.00€
  • L-Histidine

    CAS:
    <p>L-Histidine (L-(-)-Histidine) is a semi-essential amino acid (children should obtain it from food) needed in humans for growth and tissue repair, L-Histidine is</p>
    Formula:C6H9N3O2
    Purity:99.62% - 99.92%
    Color and Shape:Needles Or Plates Solid
    Molecular weight:155.15
  • L-Histidine

    Controlled Product
    CAS:
    <p>Applications L-Histidine is an essential amino acid for human development which the body cannot produce on its own. L-Histidine is one of the 22 proteinogenic amino acids. L-Histidine precursor to histamine (H436500) and a component of carnosine.<br>References Kopple, J.D. et al.: J. Clin. Invest., 55, 881 (1975); Sachs, D.H., et al.: J. Biol. Chem., 246, 6576 (1971); Mercer, L.P., et al.: Nutrition, 6, 273 (1990); Morgan, W.T., et al.: J. Biol. Chem., 268, 6256 (1993);<br></p>
    Formula:C6H9N3O2
    Color and Shape:Neat
    Molecular weight:155.15

    Ref: TR-H456010

    5g
    107.00€
    50g
    122.00€
    10mg
    89.00€
  • L-Histidine

    CAS:
    <p>L-histidine is a molecule that chelates metal ions and inhibits their function. L-Histidine is used as an analytical reagent for the determination of metal ions in water, a polymerase chain reaction (PCR) inhibitor, and an immunosuppressant. L-histidine is also used to treat bowel disease and cancer by inhibiting the production of certain molecules. L-histidine has been shown to bind to toll-like receptor 4 (TLR4) in intestinal cells, which activates the immune system to produce cytokines such as IL-8. In addition, L-histidine can act as a cofactor for enzymes involved in protein synthesis by protecting them from oxidation. L histidine can also be found in the protein that binds with gold particles, forming colloidal gold</p>
    Formula:C6H9N3O2
    Color and Shape:White Powder
    Molecular weight:155.15 g/mol

    Ref: 3D-FH15651

    1kg
    299.00€
    2kg
    486.00€
    5kg
    1,062.00€
    10kg
    2,030.00€
    25kg
    4,870.00€
  • L-Histidine (base) for cell culture, 99%, Endotoxin (BET) 1EU/mg

    CAS:
    Formula:C6H9N3O2
    Purity:min. 99%
    Color and Shape:White, Crystalline powder, Clear, Colourless
    Molecular weight:155.16

    Ref: SR-16509

    25g
    26.00€
    100g
    55.00€