*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : GZ4385100 CHEMICAL NAME : Cyclotetrasiloxane, 2,6-diphenyl-2,4,4,6,8,8-hexamethyl- CAS REGISTRY NUMBER : 4657-20-9 LAST UPDATED : 199701 DATA ITEMS CITED : 2 MOLECULAR FORMULA : C18-H28-O4-Si4 MOLECULAR WEIGHT : 420.82 WISWESSER LINE NOTATION : T8-SI-O-SI-O-SI-O-SI-OJ A1 A1 C1 CR& E1 E1 G1 GR COMPOUND DESCRIPTOR : Reproductive Effector SYNONYMS/TRADE NAMES : * 2,6-Diphenyl-2,4,6,6,8,8-hexamethylcyclotetrasiloxane *** HEALTH HAZARD DATA *** ** REPRODUCTIVE DATA ** TYPE OF TEST : TDLo - Lowest published toxic dose ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - rat DOSE : 5 mg/kg SEX/DURATION : female 1 day(s) pre-mating TOXIC EFFECTS : Reproductive - Maternal Effects - uterus, cervix, vagina REFERENCE : TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 21,68,1972 *** STATUS IN U.S. *** EPA TSCA Section 8(b) CHEMICAL INVENTORY *** END OF RECORD ***