*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : DV4990000 CHEMICAL NAME : 2,2'-Biphenyldiol, 4,4'-di-tert-butyl- CAS REGISTRY NUMBER : 63992-30-3 LAST UPDATED : 199012 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C20-H26-O2 MOLECULAR WEIGHT : 298.46 WISWESSER LINE NOTATION : 1X1&1&R CQ DR BQ DX1&1&1 SYNONYMS/TRADE NAMES : * 4,4'-Di-tert-butyl-o,o'-biphenol *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intraperitoneal SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 50 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: AD691-490 *** END OF RECORD ***