*** 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 ***