*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : XI3675000 CHEMICAL NAME : 1,3,4-Thiadiazole, 2,5-bis(4-pyridyl)- CAS REGISTRY NUMBER : 54010-21-8 LAST UPDATED : 199701 DATA ITEMS CITED : 2 MOLECULAR FORMULA : C12-H10-N4-S MOLECULAR WEIGHT : 242.32 WISWESSER LINE NOTATION : T6NJ B- CT5NN DSJ E- BT6NJ SYNONYMS/TRADE NAMES : * 2,5-Bis(4-pyridyl)-1,3,4-thiadiazole *** 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 : 100 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 *** STATUS IN U.S. *** EPA TSCA Section 8(b) CHEMICAL INVENTORY *** END OF RECORD ***