*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : EM2932000 CHEMICAL NAME : 2-Butene CAS REGISTRY NUMBER : 107-01-7 BEILSTEIN REFERENCE NO. : 1718755 REFERENCE : 3-01-00-00732 (Beilstein Handbook Reference) LAST UPDATED : 199710 DATA ITEMS CITED : 6 MOLECULAR FORMULA : C4-H8 MOLECULAR WEIGHT : 56.12 SYNONYMS/TRADE NAMES : * beta-Butylene * Pseudobutylene *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LC50 - Lethal concentration, 50 percent kill ROUTE OF EXPOSURE : Inhalation SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 425 ppm TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : 85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,12,1986 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 14144 No. of Facilities: 35 (estimated) No. of Industries: 3 No. of Occupations: 8 No. of Employees: 1648 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 14144 No. of Facilities: 32 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 545 (estimated) *** STATUS IN U.S. *** EPA TSCA Section 8(b) CHEMICAL INVENTORY EPA TSCA Section 8(d) unpublished health/safety studies EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998 *** END OF RECORD ***