*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : XI4816000 CHEMICAL NAME : 1,3,4-Thiadiazole-2(3H)-thione, 5,5'-(methylenediimino)bis- CAS REGISTRY NUMBER : 79319-85-0 LAST UPDATED : 198703 DATA ITEMS CITED : 3 MOLECULAR FORMULA : C5-H6-N6-S4 MOLECULAR WEIGHT : 278.41 COMPOUND DESCRIPTOR : Mutagen SYNONYMS/TRADE NAMES : * Chuan HUA 018 * N,N'-Methylene-bis(2-amino-5-sulfhydryl-1,3,4-thiadiazole) *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - rat DOSE/DURATION : 4640 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : ZYDXDM Zhejiang Yike Daxue Xuebao. Journal of Zhejiang Medical University. (Zhejiang Yike Daxue, Yan'an Lu, Hanzhou, Zhejiang, Peop. Rep. China) V.1- 1972(?)- Volume(issue)/page/year: 14,267,1985 TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 6810 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : ZYDXDM Zhejiang Yike Daxue Xuebao. Journal of Zhejiang Medical University. (Zhejiang Yike Daxue, Yan'an Lu, Hanzhou, Zhejiang, Peop. Rep. China) V.1- 1972(?)- Volume(issue)/page/year: 14,267,1985 ** MUTATION DATA ** TYPE OF TEST : Unscheduled DNA synthesis TEST SYSTEM : Human Cells - not otherwise specified DOSE/DURATION : 500 umol/L REFERENCE : ZYDXDM Zhejiang Yike Daxue Xuebao. Journal of Zhejiang Medical University. (Zhejiang Yike Daxue, Yan'an Lu, Hanzhou, Zhejiang, Peop. Rep. China) V.1- 1972(?)- Volume(issue)/page/year: 14,267,1985 *** END OF RECORD ***