L-Histidine hydrochloride monohydrate

Modify Date: 2025-08-20 10:03:10

L-Histidine hydrochloride monohydrate Structure
L-Histidine hydrochloride monohydrate structure
 Common Name L-Histidine hydrochloride monohydrate
CAS Number 5934-29-2 Molecular Weight 209.631
Density 1.485 g/cm3 Boiling Point 458.9ºC at 760 mmHg
Molecular Formula C6H12ClN3O3 Melting Point 254 °C (dec.)(lit.)
MSDS USA Flash Point 231.3ºC

 Names

Name L-Histidine hydrochloride monohydrate
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.485 g/cm3
Boiling Point 458.9ºC at 760 mmHg
Melting Point 254 °C (dec.)(lit.)
Molecular Formula C6H12ClN3O3
Molecular Weight 209.631
Flash Point 231.3ºC
Exact Mass 209.056717
PSA 101.23000
LogP 0.80210
Water Solubility 169.9 g/L (20 ºC)

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
MS3119000
CHEMICAL NAME :
Histidine, monohydrochloride, monohydrate, L-
CAS REGISTRY NUMBER :
5934-29-2
LAST UPDATED :
199504
DATA ITEMS CITED :
2
MOLECULAR FORMULA :
C6-H9-N3-O2.Cl-H.H2-O

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
>1677 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
YKKZAJ Yakugaku Zasshi. Journal of Pharmacy. (Nippon Yakugakkai, 2-12-15 Shibuya, Shibuya-ku, Tokyo 150, Japan) No.1- 1881- Volume(issue)/page/year: 97,1117,1977 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X9996 No. of Facilities: 148 (estimated) No. of Industries: 2 No. of Occupations: 5 No. of Employees: 512 (estimated) No. of Female Employees: 187 (estimated)

 Safety Information

Personal Protective Equipment Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Hazard Codes Xn
Risk Phrases R22
Safety Phrases S22-S24/25
RIDADR NONH for all modes of transport
WGK Germany 3
RTECS MS3119000
HS Code 29332990

 Customs

HS Code 29332990

 Articles12

More Articles
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 Synonyms

MFCD00151027
l-histidine mono hydrochloride monohydrate
EINECS 211-438-9
Histidine hydrochloride hydrate
(2S)-2-amino-3-(1H-imidazol-5-yl)propanoic acid hydrate hydrochloride
L-histidine, hydrochloride, hydrate
L-histidine, monohydrochloride, monohydrate
Histidine, hydrochloride, hydrate (1:1:1)
(2S)-2-amino-3-(1H-imidazol-5-yl)propanoic acid,hydrate,hydrochloride
(S)-2-Amino-3-(1H-imidazol-4-yl)propanoic acid hydrochloride hydrate
L-HISTIDINE monohydrochloride MONOHYDRATE
L-Histidine Hydrochloride Monohydrate
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