*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : QK3695000 CHEMICAL NAME : 1,4,5,8-Naphthalenetetracarboxylic acid, 1,8:4,5-dianhydride CAS REGISTRY NUMBER : 81-30-1 BEILSTEIN REFERENCE NO. : 0272788 REFERENCE : 5-19-05-00423 (Beilstein Handbook Reference) LAST UPDATED : 199709 DATA ITEMS CITED : 4 MOLECULAR FORMULA : C14-H4-O6 MOLECULAR WEIGHT : 268.18 SYNONYMS/TRADE NAMES : * (2)Benzopyrano(6,5,4-def)(2)benzopyran-1,3,6,8-tetrone * 2,7-Dioxapyrene-1,3,6,8-tetrone * Naphthalenetetracarboxylic dianhydride * NSC 84241 * NTCDA *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - rat DOSE/DURATION : 7400 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : 85GMAT "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982 Volume(issue)/page/year: -,90,1982 TYPE OF TEST : LDLo - Lowest published lethal dose ROUTE OF EXPOSURE : Intratracheal SPECIES OBSERVED : Rodent - rat DOSE/DURATION : 50 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : 85GMAT "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982 Volume(issue)/page/year: -,90,1982 TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 7100 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : 85GMAT "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982 Volume(issue)/page/year: -,90,1982 *** STATUS IN U.S. *** EPA TSCA Section 8(b) CHEMICAL INVENTORY *** END OF RECORD ***