*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : LV0940000 CHEMICAL NAME : 2H-Furo(2,3-h)(1)benzopyran-2-one CAS REGISTRY NUMBER : 523-50-2 BEILSTEIN REFERENCE NO. : 0153970 REFERENCE : 5-19-04-00447 (Beilstein Handbook Reference) LAST UPDATED : 199706 DATA ITEMS CITED : 10 MOLECULAR FORMULA : C11-H6-O3 MOLECULAR WEIGHT : 186.17 WISWESSER LINE NOTATION : T B566 EO LVOJ COMPOUND DESCRIPTOR : Tumorigen Drug Mutagen SYNONYMS/TRADE NAMES : * Angecin * Angelicin (coumarin deriv) * Furo(2,3-h)coumarin * Furo(5',4',7,8)coumarin * 4-Hydroxy-5-benzofuranacrylic acid gamma-lactone * 3-(4-Hydroxy-5-benzofuranyl)-2-propenoic acid gamma-lactone * Isopsoralen *** 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 : 322 mg/kg TOXIC EFFECTS : Behavioral - altered sleep time (including change in righting reflex) Behavioral - ataxia Behavioral - analgesia REFERENCE : IJMRAQ Indian Journal of Medical Research. (Indian Council of Medical Research, Ansari Nagar, New Delhi 110 029, India) V.1- 1913- Volume(issue)/page/year: 63,833,1975 TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intraperitoneal SPECIES OBSERVED : Rodent - rat DOSE/DURATION : 165 mg/kg TOXIC EFFECTS : Behavioral - altered sleep time (including change in righting reflex) Behavioral - ataxia Behavioral - analgesia REFERENCE : IJMRAQ Indian Journal of Medical Research. (Indian Council of Medical Research, Ansari Nagar, New Delhi 110 029, India) V.1- 1913- Volume(issue)/page/year: 63,833,1975 TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intraperitoneal SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 254 mg/kg TOXIC EFFECTS : Behavioral - altered sleep time (including change in righting reflex) Behavioral - ataxia Behavioral - analgesia REFERENCE : IJMRAQ Indian Journal of Medical Research. (Indian Council of Medical Research, Ansari Nagar, New Delhi 110 029, India) V.1- 1913- Volume(issue)/page/year: 63,833,1975 ** MUTATION DATA ** TYPE OF TEST : Mutation in microorganisms TEST SYSTEM : Bacteria - Escherichia coli DOSE/DURATION : 40 mg/L REFERENCE : MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 58,23,1978 TYPE OF TEST : Mutation in microorganisms TEST SYSTEM : Yeast - Saccharomyces cerevisiae DOSE/DURATION : 50 umol/L REFERENCE : BUCABS Bulletin du Cancer. (SPPIF, B.P.22, F-41353 Vineuil, France) V.53- 1966- Volume(issue)/page/year: 67,245,1980 TYPE OF TEST : Gene conversion and mitotic recombination TEST SYSTEM : Yeast - Saccharomyces cerevisiae DOSE/DURATION : 100 umol/L REFERENCE : BUCABS Bulletin du Cancer. (SPPIF, B.P.22, F-41353 Vineuil, France) V.53- 1966- Volume(issue)/page/year: 67,245,1980 *** REVIEWS *** IARC Cancer Review:Animal Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 40,291,1986 IARC Cancer Review:Human No Adequate Data IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 40,291,1986 *** STATUS IN U.S. *** EPA GENETOX PROGRAM 1988, Positive: In vitro mammalian nonhuman micronucleus EPA GENETOX PROGRAM 1988, Inconclusive: S cerevisiae-reversion *** END OF RECORD ***