CAS 71-00-1
: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)-
- <span class="text-smallcaps">L</span>-(-)-Histidine
- <span class="text-smallcaps">L</span>-Alanine, 3-(1H-imidazol-4-yl)-
- Glyoxaline-5-alanine
- Histidin
- Histidina
- Histidine
- Histidine, <span class="text-smallcaps">L</span>-
- Histidine, L-
- L-Alanine, 3-(1H-imidazol-4-yl)-
- L-Hystidine
- Nsc 137773
- (S)-2-Amino-3-(4-imidazolyl)propionic acid~H-His-OH
- L-Histidine Base
- L-HIS = H-His-OH
- L-Histidine
- H-His-OH
- L-Histidine,free base
- His
- See more synonyms
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Found 22 products.
L-Histidine
CAS:Formula:C6H9N3O2Purity:>99.0%(T)(HPLC)Color and Shape:White to Almost white powder to crystalMolecular weight:155.16H-His-OH
CAS:<p>M02982 - H-His-OH</p>Formula:C6H9N3O2Purity:98%Color and Shape:Solid, White to almost white powderMolecular weight:155.157L-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:C6H9N3O2Purity:98+%Color and Shape:Crystals or powder or crystalline powder, WhiteMolecular weight:155.16H-His-OH
CAS:<p>Bachem ID: 4030670.</p>Formula:C6H9N3O2Purity:> 99%Color and Shape:WhiteMolecular weight:155.16L-Histidine
CAS:<p>Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure nesoi</p>Formula:C6H9N3O2Color and Shape:White Crystals Crystalline PowderMolecular weight:155.15 g/molL-Histidine, 99%
CAS:Formula:C6H9N3O2Purity:(Titration) ≥ 99.0%Color and Shape:White to off-white powderMolecular weight:155.16L-Histidine
CAS:<p>L-Histidine</p>Formula:C6H9N3O2Purity:98.5%Color and Shape: white to off white powderMolecular weight:155.15g/molL-Histidine, Ph. Eur., USP grade
CAS:Formula:C6H9N3O2Purity:≤ 0.2%Color and Shape:White crystalline powderMolecular weight:155.16L-Histidine base (Ph. Eur., USP) pure
CAS:<p>L-Histidine base (Ph. Eur., USP) pure</p>Purity:Pharma GradeColor and Shape:SolidMolecular weight:155.15455g/molL-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:C6H9N3O2Purity:99.62% - 99.92%Color and Shape:Needles Or Plates SolidMolecular weight:155.15L-Histidine
CAS:Controlled Product<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:C6H9N3O2Color and Shape:NeatMolecular weight:155.15L-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:C6H9N3O2Color and Shape:White PowderMolecular weight:155.15 g/molL-Histidine (base) for cell culture, 99%, Endotoxin (BET) 1EU/mg
CAS:Formula:C6H9N3O2Purity:min. 99%Color and Shape:White, Crystalline powder, Clear, ColourlessMolecular weight:155.16L-Histidine (base) extrapure CHR, 99%
CAS:Formula:C6H9N3O2Purity:min. 99 %Color and Shape:White, Crystalline powder, Clear, ColourlessMolecular weight:155.16L-Histidine ExiPlus, Multi-Compendial, 99%
CAS:Formula:C6H9N3O2Purity:min. 99 %Color and Shape:White, Crystalline powder, Clear, ColourlessMolecular weight:155.16

















