*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : MT0175000
CHEMICAL NAME           : DL-Homocysteine
CAS REGISTRY NUMBER     : 454-29-5
BEILSTEIN REFERENCE NO. : 5493225
LAST UPDATED            : 199709
DATA ITEMS CITED        : 3
MOLECULAR FORMULA       : C4-H9-N-O2-S
MOLECULAR WEIGHT        : 135.20
COMPOUND DESCRIPTOR     : Mutagen
SYNONYMS/TRADE NAMES :
   * DL-2-Amino-4-mercaptobutyric acid
   * Butyric acid, 2-amino-4-mercapto-, DL-
   * (+-)-Homocysteine
   * USAF B-12
 
                       *** 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
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 770 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: 89,1138,1969
 
                            ** MUTATION DATA **
 
TYPE OF TEST            : Phage inhibition capacity
TEST SYSTEM             : Bacteria - Escherichia coli
DOSE/DURATION           : 125 mg/L
REFERENCE :
   APMBAY Applied Microbiology.  (Washington, DC)  V.1-30, 1953-75.  For
   publisher information, see AEMIDF.  Volume(issue)/page/year: 12,234,1964
 
                            *** END OF RECORD ***