*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : HP5295045
CHEMICAL NAME           : 1(9bH)-dibenzofuranone,
                          2,6-diacetyl-8,9b-dimethyl-3,7,9-trihydroxy-, sodium
                          salt
CAS REGISTRY NUMBER     : 39012-86-7
LAST UPDATED            : 198806
DATA ITEMS CITED        : 2
MOLECULAR FORMULA       : C18-H16-O7.xNa
MOLECULAR WEIGHT        : 505.27
SYNONYMS/TRADE NAMES :
   * 2,6-Diacetyl-8,9b-dimethyl-3,7,9-trihydroxy-1(9bh)-dibenzofuranone sodium 
    salt
   * 1,3(2H,9bH)-dibenzofurandione, 2,6-diacetyl-7,9-dihydroxy-8,9b-dimethyl-, 
    sodium salt
   * Usnic acid sodium salt
   * Usninsaeure natriumsalz
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Unreported
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 290 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   ARZNAD Arzneimittel-Forschung. Drug Research.  (Editio Cantor Verlag,
   Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.)  V.1-    1951-
   Volume(issue)/page/year: 5,507,1955
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 500 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   ARZNAD Arzneimittel-Forschung. Drug Research.  (Editio Cantor Verlag,
   Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.)  V.1-    1951-
   Volume(issue)/page/year: 5,507,1955
 
                            *** END OF RECORD ***