*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : YV9399000
CHEMICAL NAME           : L-Valine,
                          N-(3-hydroxy-7-mercapto-1-oxo-4-heptenyl)-D-valyl-D-c
                          ysteinyl-(Z)-2,3-dide hydro-2- aminobutanoyl-,
                          ti-lactone, cyclic (1-2)-disulfide, (S-(E))-
CAS REGISTRY NUMBER     : 128517-07-7
LAST UPDATED            : 199610
DATA ITEMS CITED        : 2
MOLECULAR FORMULA       : C24-H36-N4-O6-S2
MOLECULAR WEIGHT        : 540.76
COMPOUND DESCRIPTOR     : Drug
                          Natural Product
SYNONYMS/TRADE NAMES :
   * Antibiotic FR 901228
   * FR 901228
 
                       *** 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           : 6400 ug/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: 47,301,1994
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 10 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: 47,301,1994
 
                            *** END OF RECORD ***