*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : UR5267000
CHEMICAL NAME           : Pyridazine
CAS REGISTRY NUMBER     : 289-80-5
LAST UPDATED            : 199803
DATA ITEMS CITED        : 4
MOLECULAR FORMULA       : C4-H4-N2
MOLECULAR WEIGHT        : 80.10
WISWESSER LINE NOTATION : T6NNJ
COMPOUND DESCRIPTOR     : Drug
SYNONYMS/TRADE NAMES :
   * 1,2-Diazabenzene
   * o-Diazine
   * 1,2-Diazine
   * Orthodiazine
 
                       *** 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           : 2650 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   PBPHAW Progress in Biochemical Pharmacology.  (S. Karger AG, Postfach
   CH-4009 Basel, Switzerland) V.1-    1965-  Volume(issue)/page/year:
   1,542,1965

                          *** STATUS IN U.S. ***
 
   EPA TSCA Section 8(b) CHEMICAL INVENTORY
   
   EPA TSCA Section 8(d) unpublished health/safety studies
   
   EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998

 
                            *** END OF RECORD ***