*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : EM4727000
CHEMICAL NAME           : 2-Butene, 1,4-dibromo-2-methyl-
CAS REGISTRY NUMBER     : 18860-95-2
LAST UPDATED            : 199509
DATA ITEMS CITED        : 3
MOLECULAR FORMULA       : C5-H8-Br2
MOLECULAR WEIGHT        : 227.95
SYNONYMS/TRADE NAMES :
   * Isoprene dibromide
   * 1,4-Dibromoisoprene
   * 1,4-Dibromo-2-methyl-2-butene
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 2100 ppb/4H
TOXIC EFFECTS :
   Sense Organs and Special Senses (Eye) - lacrimation
   Behavioral - somnolence (general depressed activity)
   Nutritional and Gross Metabolic - weight loss or decreased weight gain
REFERENCE :
   TOXID9 Toxicologist.  (Soc. of Toxicology, Inc., 475 Wolf Ledge Parkway,
   Akron, OH 44311) V.1-    1981-  Volume(issue)/page/year: 3,25,1983
 
TYPE OF TEST            : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 5500 ppb/4H
TOXIC EFFECTS :
   Sense Organs and Special Senses (Eye) - lacrimation
   Behavioral - somnolence (general depressed activity)
   Nutritional and Gross Metabolic - weight loss or decreased weight gain
REFERENCE :
   TOXID9 Toxicologist.  (Soc. of Toxicology, Inc., 475 Wolf Ledge Parkway,
   Akron, OH 44311) V.1-    1981-  Volume(issue)/page/year: 3,25,1983
 
                 ** OTHER MULTIPLE DOSE TOXICITY DATA **
 
TYPE OF TEST            : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 1080 ppb/6H/9D-I
TOXIC EFFECTS :
   Lungs, Thorax, or Respiration - other changes
REFERENCE :
   TOXID9 Toxicologist.  (Soc. of Toxicology, Inc., 475 Wolf Ledge Parkway,
   Akron, OH 44311) V.1-    1981-  Volume(issue)/page/year: 3,25,1983
 
                            *** END OF RECORD ***