*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : AI2380000 CHEMICAL NAME : Acetic acid, (4-hydroxy-2-oxo-2H-1-benzopyran-3-yl)(4-oxo-4H-1-ben zopyran-3-yl)-, ethyl ester CAS REGISTRY NUMBER : 2183-16-6 BEILSTEIN REFERENCE NO. : 1332696 LAST UPDATED : 199612 DATA ITEMS CITED : 2 MOLECULAR FORMULA : C22-H16-O7 MOLECULAR WEIGHT : 392.38 SYNONYMS/TRADE NAMES : * Ethyl chromonyl-(3)4'-hydroxycoumarinyl-(3')-acetate * Ethylesteru kyseliny (chromonyl-3)-(4-hydroxykumarinyl-3)-octove * (4-Hydroxy-2-oxo-2H-1-benzopyran-3-yl)(4-oxo-4H-1-benzopyran-3-yl)acetic acid ethyl ester *** 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 : 200 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : CKFRAY Ceskoslovenska Farmacie. (PNS-Ustredni Expedice a Dovoz Tisku, Kafkova 19, 160 00 Prague 6, Czechoslovakia) V.1- 1952- Volume(issue)/page/year: 4,169,1955 TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 800 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : CKFRAY Ceskoslovenska Farmacie. (PNS-Ustredni Expedice a Dovoz Tisku, Kafkova 19, 160 00 Prague 6, Czechoslovakia) V.1- 1952- Volume(issue)/page/year: 4,169,1955 *** END OF RECORD ***