*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : TH9185000
CHEMICAL NAME           : 1(2H)Phthalazinone
CAS REGISTRY NUMBER     : 119-39-1
LAST UPDATED            : 199701
DATA ITEMS CITED        : 4
MOLECULAR FORMULA       : C8-H6-N2-O
MOLECULAR WEIGHT        : 146.16
WISWESSER LINE NOTATION : T66 BVMNJ
COMPOUND DESCRIPTOR     : Mutagen
SYNONYMS/TRADE NAMES :
   * Phthalazinone
   * Phthalazone
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 370 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   IHFCAY Industrial Hygiene Foundation of America, Chemical and Toxicological
   Series, Bulletin. (Pittsburgh, PA)  1947-69.  Volume(issue)/page/year:
   6,1,1967
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 180 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems
   Laboratory, NIOSH Exchange Chemicals.  (Aberdeen Proving Ground, MD 21010)
   Volume(issue)/page/year: NX#00139

                          *** STATUS IN U.S. ***
 
   EPA GENETOX PROGRAM 1988, Positive: Cell transform.-SA7/SHE
   
   EPA TSCA Section 8(b) CHEMICAL INVENTORY

 
                            *** END OF RECORD ***