*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : JQ0902000
CHEMICAL NAME           : Rifamycin,
                          3-(((4-cyclopentyl-1-piperazinyl)imino)methyl)-
CAS REGISTRY NUMBER     : 61379-65-5
OTHER CAS REGISTRY NOS. : 71950-35-1
LAST UPDATED            : 199712
DATA ITEMS CITED        : 5
MOLECULAR FORMULA       : C47-H64-N4-O12
MOLECULAR WEIGHT        : 877.15
COMPOUND DESCRIPTOR     : Drug
SYNONYMS/TRADE NAMES :
   * Antibiotic DL 473IT
   * 3-(((4-Cyclopentyl-1-piperazinyl)imino)methyl)rifamycin
   * 3-(4-Cyclopentyl-1-piperazinyl)iminomethylrifamycin SV
   * DL 473
   * KTC 1
   * MDL 473
   * R-773
   * Rifamycin AF/ACPP
   * Rifapentine
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : >4 gm/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   ZYZAEU Zhongguo Yaoxue Zazhi. Chinese Pharmacuetical Journal. (China
   International Book Trading Corp., POB 2820, Beijing, Peop. China) V.24-
   1989-  Volume(issue)/page/year: 27,242,1992
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : >2 gm/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   ZYZAEU Zhongguo Yaoxue Zazhi. Chinese Pharmacuetical Journal. (China
   International Book Trading Corp., POB 2820, Beijing, Peop. China) V.24-
   1989-  Volume(issue)/page/year: 27,242,1992
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 3300 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   JANTAJ Journal of Antibiotics.  (Japan Antibiotics Research Assoc., 2-20-8
   Kamiosaki, Shinagawa-ku, Tokyo, 141, Japan)  V.2-5, 1948-52;  V.21- 1968-
   Volume(issue)/page/year: 34,1026,1981
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 710 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   JANTAJ Journal of Antibiotics.  (Japan Antibiotics Research Assoc., 2-20-8
   Kamiosaki, Shinagawa-ku, Tokyo, 141, Japan)  V.2-5, 1948-52;  V.21- 1968-
   Volume(issue)/page/year: 34,1026,1981
 
                 ** OTHER MULTIPLE DOSE TOXICITY DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 140 ug/kg/7D-I
TOXIC EFFECTS :
   Liver - other changes
   Biochemical - Enzyme inhibition, induction, or change in blood or tissue
   levels - hepatic microsomal mixed oxidase (dealkylation, hydroxylation,
   etc.)
   Biochemical - Metabolism (Intermediary) - other proteins
REFERENCE :
   ZYZAEU Zhongguo Yaoxue Zazhi. Chinese Pharmacuetical Journal. (China
   International Book Trading Corp., POB 2820, Beijing, Peop. China) V.24-
   1989-  Volume(issue)/page/year: 26,720,1991
 
                            *** END OF RECORD ***