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LUPEROX DELTA19 ATORNA Material Safety Data Sheet ATOFINA Chemicals, inc. j11 TOXICOLOGICAL INFORMATION yl Tats. No evidence of nervous system injury following long-term inhalation exposure to this material has been observed in rats, chickens, mice or cats. Animal studies have shown this material to increase the severity of, o shorten the onset of irreversible nervous systen. effects oue to n-hexane and methyl F.ut�i ketone: as vrei! a= effects cf chloroform?': ane carbon tet-a;.hl^ride This rr:aterial dia not in-ease il)e inri_ien:,E of tumors in long-term skin application studies in mice. A small number of major birth defects were reported in rats exposed to this material by inhalation during pregnancy at a level (3,000' pprn) which produced toxic effects ire the offspring, but not in the rnothers However, no birth defects were found in a seconc repeat study with rat: using very similar exposure conditions, while adverse effects were noted in the mothers and their offspring. Ir., mice exposed to 3000 ppm of this material by inhalation during pregnancy, toxic effects were observed in the mothers(mild effects only) and their offspring. This material has generally produced no genetic changes in standard tests using animals and animal or bacterial cells. A positive response was reported in one assay using yeast cells. 12 ECOLOGICAL INFORMATION _— Ecotoxicological Information Data on this material and/or its components are summarized below. 2,2,4-Trirnethyl-1,3-Pentanediol Diisobutyrate This material is no more than moderately toxic to fathead minnow, ramshorn snails, aquatic earthworms, sideswimmers, pill bugs and flatworms(96-hr LC50s>1.55 mg/1), and daphnids (96-hr EC50>1.46 mg/1). Methyl ethyl ketone peroxide(s) This material is slightly toxic to guppies (96-hr LC50 44.2 mg/1). Hydrogen Peroxide This material is slightly toxic to Coho salmon (LC50 10 mg/1), Channel catfish(LC50 37.4 mg/1), Golden orfe (LC50 35 mg/1), fathead minnow (LC50 16.4 mg/1), snails (L.C50 17.7 mg/1): and bacteria (EC50 30 mg/1). It is moderately toxic to Daphnia magna (EC50 7.7 mg/1) and Daphnia Pulex (LC50 2.4 mg/I), and is highly toxic to marine algae(LC50 0.85 mg/l). Methyl Ethyl Ketone This material is practically non-toxic to goldfish, brine shrimp, Daphnia magna, fathead minnow, mosquito fish, bluegill sunfish and golden orfe(LC50s>1,000 mg/I). This material inhibits fungal growth and is reported to be bacteriostatic to several microorganisms(Escherichia coli, Salmonella typhimurium, Staphylococcus aureus, Leuconostoc citrovorum and Streptococcus thermophilus) at levels of 10-100 mg/l. Growth inhibition has also been reported for freshwater algae at levels ranging from 120 mg/I (blue-green algae) to 4,300 mg/i (green algae). Chemical Fate Information Data on this material and/or its components are summarized below. 2,2,4-Trim ethyl-l,3-Pentanediol Diisobutyrate In a 28-day modified Sturm Test, this material was found to undergo 32-59% degradation to CO2. The bioconcentration factor without metabolism was estimated to be 670 and with metabolism 1-40. The log Pow is estimated to be 4.1. Methyl ethyl ketone peroxide(s) Product Code: 114000 Revision: 3 Issued:16 FEB 2001 Page 7 of 10