*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : CB9724500
CHEMICAL NAME           : Antibiotic X-948
SUBSTANCE DEFINITION :
   Isolated from the fermentation liquor of Streptomyces X-948
REFERENCE :
   ANYAA9 Annals of the New York Academy of Sciences.  (New York Academy of
   Sciences, 2 E. 63rd St., New York, NY 10021)  V.1-    1877-
LAST UPDATED            : 199506
DATA ITEMS CITED        : 3
COMPOUND DESCRIPTOR     : Drug
                          Natural Product
SYNONYMS/TRADE NAMES :
   * X-948
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : >2500 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   ANYAA9 Annals of the New York Academy of Sciences.  (New York Academy of
   Sciences, 2 E. 63rd St., New York, NY 10021)  V.1-    1877-
   Volume(issue)/page/year: 55,1090,1952
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 750 ug/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   ANYAA9 Annals of the New York Academy of Sciences.  (New York Academy of
   Sciences, 2 E. 63rd St., New York, NY 10021)  V.1-    1877-
   Volume(issue)/page/year: 55,1090,1952
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 3800 ug/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   ANYAA9 Annals of the New York Academy of Sciences.  (New York Academy of
   Sciences, 2 E. 63rd St., New York, NY 10021)  V.1-    1877-
   Volume(issue)/page/year: 55,1090,1952
 
                            *** END OF RECORD ***