*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : SB3854500 CHEMICAL NAME : 3-Penten-2-one, 3-chloro-4-methyl- CAS REGISTRY NUMBER : 58031-23-5 LAST UPDATED : 199706 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C6-H9-Cl-O MOLECULAR WEIGHT : 132.60 SYNONYMS/TRADE NAMES : * 3-Chloro-4-methyl-3-penten-2-one * Mesityl oxide, alpha-chloro- * TL 128 *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LC - Lethal concentration ROUTE OF EXPOSURE : Inhalation SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : >3 gm/m3/10M 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: NDCrc-132,MAR1942 *** END OF RECORD ***