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Key Documents

53340

Sigma-Aldrich

L-Histidine dihydrochloride

≥99.0% (AT)

Sinonimo/i:

L-Histidine hydrochloride (1:2)

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About This Item

Formula empirica (notazione di Hill):
C6H9N3O2 · 2HCl
Numero CAS:
Peso molecolare:
228.08
Beilstein:
6119230
Numero CE:
Numero MDL:
Codice UNSPSC:
12352209
ID PubChem:
NACRES:
NA.26

product name

L-Histidine dihydrochloride, ≥99.0% (AT)

Livello qualitativo

Saggio

≥99.0% (AT)

Forma fisica

powder or crystals

Attività ottica

[α]20/D +6.5±1°, c = 8% in H2O

Residuo alla calcinazione

≤0.1% (as SO4)

Colore

white

Punto di fusione

240-245 °C (dec.)

Solubilità

H2O: soluble
saline: soluble

Anioni in tracce

sulfate (SO42-): ≤50 mg/kg

Cationi in tracce

As: ≤0.1 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
NH4+: ≤500 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

Stringa SMILE

Cl.Cl.N[C@@H](Cc1c[nH]cn1)C(O)=O

InChI

1S/C6H9N3O2.2ClH/c7-5(6(10)11)1-4-2-8-3-9-4;;/h2-3,5H,1,7H2,(H,8,9)(H,10,11);2*1H/t5-;;/m0../s1
XEJCDBUNISUVGZ-XRIGFGBMSA-N

Azioni biochim/fisiol

L-Histidine is a natural proteinogenic α amino acid useful as a cell growth supplement that support protein and peptide biosynthesis. L-Histidine is studied in a wide range of applications that involve imidazole chemistry and biochemisty.
L-Histidine is a positively charged imidazole-side chain containing α amino acid. It is metabolized to histamine and is a precursor of the dipeptide carnosine. As one of the 22 proteinogenic amino acids L-His is incorporated into proteins by translation processes in vitro. L-Histidine is an essential amino acid added to cell culture media.

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)


Certificati d'analisi (COA)

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Current opinion in microbiology, 15(2), 118-124 (2011-12-17)
Two-component systems, composed of a histidine kinase (HK) and a response regulator (RR), are the major signal transduction devices in bacteria. Originally it was thought that these two components function as linear, phosphorylation-driven stimulus-response system. Here, we will review how
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Seminars in thrombosis and hemostasis, 37(4), 389-394 (2011-08-02)
Histidine-rich glycoprotein (HRG) is one of the major plasma proteins and thought to function in blood coagulation, fibrinolysis, and innate immune systems. The amino acid sequence of HRG revealed a multidomain structure consisting of cystatin-like domains 1 and 2, a
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The radical oxidation of isomeric peptides containing one reactive amino acid [histidine (H)] and another less reactive amino acid [glycine (G)] in the form of dipeptides (HG and GH) and tripeptides (HGG, GHG, and GGH) was studied by mass spectrometry
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Indian journal of pharmacology, 45(2), 126-129 (2013-05-30)
Cyclophosphamide (CP), a widely used antineoplastic drug causes hemorrhagic cystitis (HC) mainly via induction of oxidative stress. Both vitamin C and histidine have antioxidant properties. The present study aimed to investigate the effects of oral (p.o.) administration of vitamin C
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Journal of Alzheimer's disease : JAD, 11(2), 229-240 (2007-05-25)
Reactive oxygen species, reactive nitrogen species, copper and zinc ions, glycating agents and reactive aldehydes, protein cross-linking and proteolytic dysfunction may all contribute to Alzheimer's disease (AD). Carnosine (beta-alanyl-L-histidine) is a naturally-occurring, pluripotent, homeostatic agent. The olfactory lobe is normally

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