*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : UR6114950
CHEMICAL NAME           : 3(2H)-Pyridazinone,
                          4-acetyl-5,6-bis(4-chlorophenyl)-2-(2-(formyloxy)ethy
                          l)-
CAS REGISTRY NUMBER     : 78612-98-3
LAST UPDATED            : 199206
DATA ITEMS CITED        : 1
MOLECULAR FORMULA       : C21-H16-Cl2-N2-O4
MOLECULAR WEIGHT        : 431.29
COMPOUND DESCRIPTOR     : Drug
SYNONYMS/TRADE NAMES :
   * 4-Acetyl-5,6-bis(4-chlorophenyl)-2-(2'-hydroxyethyl)-2H-pyridazin-3-one  
   formate
 
                       *** 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           : >300 mg/kg
TOXIC EFFECTS :
   Vascular - BP lowering not characterized in autonomic section
REFERENCE :
   JPMSAE Journal of Pharmaceutical Sciences.  (American Pharmaceutical Assoc.,
   2215 Constitution Ave., NW, Washington, DC 20037)  V.50-    1961-
   Volume(issue)/page/year: 70,419,1981
 
                            *** END OF RECORD ***