*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : UQ8290000
CHEMICAL NAME           : 3,5-Pyrazolidinedione, 4-butyl-1,2-diphenyl-, mixed
                          with 4-(dimethylamino)-1,2-dihydro-1,5-
                          dimethyl-2-phenyl-3H-pyrazol-3-one
CAS REGISTRY NUMBER     : 8064-79-7
LAST UPDATED            : 199203
DATA ITEMS CITED        : 8
MOLECULAR FORMULA       : C19-H20-N2-O2.C13-H17-N3-O
MOLECULAR WEIGHT        : 539.74
WISWESSER LINE NOTATION : T5VNNV EHJ BR& CR& E4 &T5NNVJ AR& BR& DN1&1 E1
COMPOUND DESCRIPTOR     : Drug
SYNONYMS/TRADE NAMES :
   * Irgapyrin
   * Irgapyrine
   * Pabialgin
   * Rheopyrine
 
                       *** 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           : 1375 mg/kg
TOXIC EFFECTS :
   Behavioral - general anesthetic
   Behavioral - convulsions or effect on seizure threshold
   Behavioral - excitement
REFERENCE :
   SMWOAS Schweizerische Medizinische Wochenschrift.  (Schwabe & Co.,
   Steintorst 13, 4010 Basel, Switzerland)  V.50-    1920-
   Volume(issue)/page/year: 79,577,1949
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 290 mg/kg
TOXIC EFFECTS :
   Behavioral - tremor
   Behavioral - convulsions or effect on seizure threshold
   Gastrointestinal - changes in structure or function of salivary glands
REFERENCE :
   JPETAB Journal of Pharmacology and Experimental Therapeutics.  (Williams &
   Wilkins Co., 428 E. Preston St., Baltimore, MD 21202)  V.1-    1909/10-
   Volume(issue)/page/year: 109,387,1953
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 160 mg/kg
TOXIC EFFECTS :
   Behavioral - general anesthetic
   Behavioral - convulsions or effect on seizure threshold
   Behavioral - excitement
REFERENCE :
   SMWOAS Schweizerische Medizinische Wochenschrift.  (Schwabe & Co.,
   Steintorst 13, 4010 Basel, Switzerland)  V.50-    1920-
   Volume(issue)/page/year: 79,577,1949
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 700 mg/kg
TOXIC EFFECTS :
   Behavioral - general anesthetic
   Behavioral - convulsions or effect on seizure threshold
   Behavioral - excitement
REFERENCE :
   SMWOAS Schweizerische Medizinische Wochenschrift.  (Schwabe & Co.,
   Steintorst 13, 4010 Basel, Switzerland)  V.50-    1920-
   Volume(issue)/page/year: 79,577,1949
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 412 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   DPHFAK Dissertationes Pharmaceuticae et Pharmacologicae.  (Warsaw, Poland)
   V.18-24, 1966-72.  For publisher information, see PJPPAA.
   Volume(issue)/page/year: 23,363,1971
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 155 mg/kg
TOXIC EFFECTS :
   Behavioral - convulsions or effect on seizure threshold
REFERENCE :
   JPETAB Journal of Pharmacology and Experimental Therapeutics.  (Williams &
   Wilkins Co., 428 E. Preston St., Baltimore, MD 21202)  V.1-    1909/10-
   Volume(issue)/page/year: 109,387,1953
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intramuscular
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 560 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   OYYAA2 Oyo Yakuri.  Pharmacometrics.  (Oyo Yakuri Kenkyukai, CPO Box 180,
   Sendai 980-91, Japan) V.1-    1967-  Volume(issue)/page/year: 13,79,1977
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 145 mg/kg
TOXIC EFFECTS :
   Behavioral - general anesthetic
   Behavioral - convulsions or effect on seizure threshold
   Behavioral - excitement
REFERENCE :
   SMWOAS Schweizerische Medizinische Wochenschrift.  (Schwabe & Co.,
   Steintorst 13, 4010 Basel, Switzerland)  V.50-    1920-
   Volume(issue)/page/year: 79,577,1949
 
                            *** END OF RECORD ***