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

Modify Date: 2025-08-27 12:34:06

(R)-2-Amino-3-(methylthio)propanoic acid structure	Common Name	(R)-2-Amino-3-(methylthio)propanoic acid
	CAS Number	7728-98-5	Molecular Weight	135.18500
	Density	1.26g/cm3	Boiling Point	300.3ºC at 760 mmHg
	Molecular Formula	C₄H₉NO₂S	Melting Point	N/A
	MSDS	N/A	Flash Point	135.4ºC

Name	(R)-2-Amino-3-(methylthio)propanoic acid
Synonym	More Synonyms

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
InChIKey	IDIDJDIHTAOVLG-UHFFFAOYSA-N
SMILES	CSCC(N)C(=O)O

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

S-methylcysteine

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