*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : JN1000000
CHEMICAL NAME           : Disiloxane, 1,1,3,3-tetramethyl-
CAS REGISTRY NUMBER     : 3277-26-7
LAST UPDATED            : 199701
DATA ITEMS CITED        : 3
MOLECULAR FORMULA       : C4-H14-O-Si2
MOLECULAR WEIGHT        : 134.36
SYNONYMS/TRADE NAMES :
   * Bis(dimethylsilyl) ether
   * Bis(dimethylsilyl) oxide
   * 1,3-Dihydrotetramethyldisiloxane
   * Dimethylsilyl ether
   * sym-Tetramethyldisiloxane
   * 1,1,3,3-Tetramethyldisiloxane
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 3 gm/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J.,
   Prague, Czechoslovakia, Avicenum, 1986  Volume(issue)/page/year: -,1221,1986
 
TYPE OF TEST            : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 400 gm/m3/2H
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J.,
   Prague, Czechoslovakia, Avicenum, 1986  Volume(issue)/page/year: -,1221,1986

                          *** STATUS IN U.S. ***
 
   EPA TSCA Section 8(b) CHEMICAL INVENTORY

 
                            *** END OF RECORD ***