*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : RM8950000 CHEMICAL NAME : Orthopropiolic acid, cyclic ester with 2-tert-butyl-2-(hydroxymethyl)-1,3-propanediol CAS REGISTRY NUMBER : 97720-42-8 LAST UPDATED : 199112 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C11-H16-O3 MOLECULAR WEIGHT : 196.27 WISWESSER LINE NOTATION : T66 A B AO EO GOTJ CX1&1&1 F1UU1 SYNONYMS/TRADE NAMES : * 1-Ethynyl-4-tert-butylbicycloorthocarboxylate * 2,6,7-Trioxabicyclo(2.2.2)octane, 4-(1,1-dimethylethyl)-1-ethynyl- *** 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 : 430 ug/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : MOPMA3 Molecular Pharmacology. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1965- Volume(issue)/page/year: 28,246,1985 *** END OF RECORD ***