*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : GY1500000 CHEMICAL NAME : 1,3-Cyclopentadiene, methyl- CAS REGISTRY NUMBER : 26519-91-5 LAST UPDATED : 199701 DATA ITEMS CITED : 3 MOLECULAR FORMULA : C6-H8 MOLECULAR WEIGHT : 80.14 WISWESSER LINE NOTATION : L5 AHJ X1 SYNONYMS/TRADE NAMES : * Methylcyclopentadiene * Methyl-1,3-cyclopentadiene *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 2700 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 46(1),94,1981 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - M3979 No. of Facilities: 3257 (estimated) No. of Industries: 16 No. of Occupations: 25 No. of Employees: 38993 (estimated) *** STATUS IN U.S. *** EPA TSCA Section 8(b) CHEMICAL INVENTORY *** END OF RECORD ***