*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : XZ5960000
CHEMICAL NAME           : 3H-v-Triazolo(4,5-d)pyrimidine-5,7(4H,6H)-dione,
                          4-hydroxy-
CAS REGISTRY NUMBER     : 42028-33-1
LAST UPDATED            : 199709
DATA ITEMS CITED        : 1
MOLECULAR FORMULA       : C4-H3-N5-O3
MOLECULAR WEIGHT        : 169.12
WISWESSER LINE NOTATION : T56 BMNN FNVMVJ FQ
COMPOUND DESCRIPTOR     : Tumorigen
SYNONYMS/TRADE NAMES :
   * 3-Hydroxy-8-azaxanthine
   * 4-Hydroxy-3H-v-triazolo(4,5-d)pyrimidine-5,7(4H,6H)-dione
 
                       *** HEALTH HAZARD DATA ***
 
                          ** TUMORIGENIC DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 237 mg/kg/22W-I
TOXIC EFFECTS :
   Tumorigenic - equivocal tumorigenic agent by RTECS criteria
   Tumorigenic - tumors at site of application
REFERENCE :
   CNREA8 Cancer Research. (Public Ledger Building, Suit 816, 6th & Chestnut
   Sts., Philadelphia, PA 19106)  V.1-    1941-  Volume(issue)/page/year:
   33,1113,1973
 
                            *** END OF RECORD ***