*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : UM0738000 CHEMICAL NAME : Pseudourea, 2-benzyl-2-thio-, monohydrochloride CAS REGISTRY NUMBER : 538-28-3 LAST UPDATED : 199701 DATA ITEMS CITED : 6 MOLECULAR FORMULA : C8-H10-N2-S.Cl-H MOLECULAR WEIGHT : 202.72 WISWESSER LINE NOTATION : MUYZS1R &GH SYNONYMS/TRADE NAMES : * Benzylisothiourea hydrochloride * Benzylisothiouronium chloride * 2-Benzylisothiouronium chloride * Benzyl thiopseudourea hydrochloride * Benzylthiuronium chloride * S-Benzylthiuronium chloride * BTKH * Isothiouronium chloride, benzyl- * Pseudourea, 2-benzyl-2-thio-, hydrochloride * Pseudourea, 2-thio-2-benzyl-, hydrochloride * TL 944 * USAF EK-2124 *** 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 : 27 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 27(2),52,1983 TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 170 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : URXXAF U.S.S.R. Patent Document. (Gosudarstvennyi Komitet SSSR po Delam Izobretenii i Otkrytii, Malyi Tcherkasski pereulok 2/6, Moscow, Russia). Volume(issue)/page/year: #0822829 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: AD277-689 TYPE OF TEST : LDLo - Lowest published lethal dose ROUTE OF EXPOSURE : Subcutaneous SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 80 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : NDRC** National Defense Research Committee, Office of Scientific Research and Development, Progress Report. Volume(issue)/page/year: No.9-4-1-9,1943 TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intravenous SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 32 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#00167 *** STATUS IN U.S. *** EPA TSCA Section 8(b) CHEMICAL INVENTORY *** END OF RECORD ***