*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : RL1230015 CHEMICAL NAME : OPC-198 SUBSTANCE DEFINITION : 13C-Urea which substitutes a stable isotopic carbon for carbon in the urea molecule REFERENCE : YACHDS Yakuri to Chiryo. Pharmacology and Therapeutics. (Raifu Saiensu Shuppan K.K., 2-5-13, Yaesu, Chuo-ku, Tokyo 104, Japan) V.1- 1972- Volume(issue)/page/year: 24,759,1996 LAST UPDATED : 199703 DATA ITEMS CITED : 1 COMPOUND DESCRIPTOR : Drug *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD - Lethal dose ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - rat DOSE/DURATION : >2 gm/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : YACHDS Yakuri to Chiryo. Pharmacology and Therapeutics. (Raifu Saiensu Shuppan K.K., 2-5-13, Yaesu, Chuo-ku, Tokyo 104, Japan) V.1- 1972- Volume(issue)/page/year: 24,759,1996 *** END OF RECORD ***