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(R)-2-Amino-3-(methylthio)propanoic acid

Names

[ CAS No. ]:
7728-98-5

[ Name ]:
(R)-2-Amino-3-(methylthio)propanoic acid

[Synonym ]:
S-methylcysteine

Chemical & Physical Properties

[ Density]:
1.26g/cm3

[ Boiling Point ]:
300.3ºC at 760 mmHg

[ Molecular Formula ]:
C4H9NO2S

[ Molecular Weight ]:
135.18500

[ Flash Point ]:
135.4ºC

[ Exact Mass ]:
135.03500

[ PSA ]:
88.62000

[ LogP ]:
0.46160

[ Index of Refraction ]:
1.539

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
AY7175000
CHEMICAL NAME :
Alanine, 3-(methylthio)-, L-
CAS REGISTRY NUMBER :
7728-98-5
LAST UPDATED :
199406
DATA ITEMS CITED :
3
MOLECULAR FORMULA :
C4-H9-N-O2-S
MOLECULAR WEIGHT :
135.20
WISWESSER LINE NOTATION :
QVYZ1S1

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 :
500 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: AD277-689 ** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
35 gm/kg/13D-C
TOXIC EFFECTS :
Liver - changes in liver weight Kidney, Ureter, Bladder - changes in bladder weight
REFERENCE :
JONUAI Journal of Nutrition. (Subscription Dept., 9650 Rockville Pike, Bethesda, MD 20014) V.1- 1928- Volume(issue)/page/year: 106,1714,1976
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
34 gm/kg/20D-C
TOXIC EFFECTS :
Liver - changes in liver weight Kidney, Ureter, Bladder - changes in bladder weight Endocrine - changes in spleen weight
REFERENCE :
JONUAI Journal of Nutrition. (Subscription Dept., 9650 Rockville Pike, Bethesda, MD 20014) V.1- 1928- Volume(issue)/page/year: 106,1714,1976

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