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L-Histidine hydrochloride

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L-Histidine hydrochloride Basic information

Product Name:
L-Histidine hydrochloride
Synonyms:
  • H-His-OH.xHCl
  • L-HISTIDINE DIHYDROCHLORIDE
  • Crystalline2HCl
  • L-Histidine hydrochloride
  • L-Histidine hydrochloride solution
  • histidine hydrochloride
  • China Best L-Histidine hydrochloride CAS NO.1007-42-7
  • L-Histidine hydrochloride CAS NO.1007-42-7
CAS:
1007-42-7
MF:
C6H10ClN3O2
MW:
191.62
EINECS:
213-754-2
Mol File:
1007-42-7.mol
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L-Histidine hydrochloride Chemical Properties

Melting point:
240-245 °C (dec.)
alpha 
[α]D20 +7.0~+10.0°(c=2,HCl)
storage temp. 
Inert atmosphere,Room Temperature
CAS DataBase Reference
1007-42-7(CAS DataBase Reference)
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Safety Information

Safety Statements 
22-24/25
RIDADR 
UN 1789 8/PG 3
WGK Germany 
3
3-10

MSDS

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L-Histidine hydrochloride Usage And Synthesis

Purification Methods

The dihydrochloride crystallises from water or aqueous EtOH and is washed with acetone, then diethyl ether. Alternatively convert it to the histidine di-(3,4-dichlorobenzenesulfonate) salt by dissolving 3,4-dichlorobenzenesulfonic acid (1.5g/10mL) in the aqueous histidine solution with warming, and then the solution is cooled in ice. The resulting crystals (m 280o dec) can be recrystallised from 5% aqueous 3,4-dichlorobenzenesulfonic acid, then dried over CaCl2 under vacuum, and washed with diethyl ether to remove Purification of Biochemicals — Amino Acids and Peptides excess reagent. The dihydrochloride can be regenerated by passing the solution through a Dowex-1 (Cl-form) ion-exchange column. The solid is obtained by evaporation of the solution on a steam bath or better in a vacuum. [Greenstein & Winitz, The Amino Acids Vol 3 p 1976 1961, Beilstein 25/16 V 366.]

L-Histidine hydrochloride Preparation Products And Raw materials

Raw materials

L-Histidine hydrochlorideSupplier

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