*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : GU1800000
CHEMICAL NAME           : Cyclobutene-1,2-dione, 3,4-dihydroxy-
CAS REGISTRY NUMBER     : 2892-51-5
BEILSTEIN REFERENCE NO. : 0774275
REFERENCE               : 4-08-00-02701 (Beilstein Handbook Reference)
LAST UPDATED            : 199701
DATA ITEMS CITED        : 2
MOLECULAR FORMULA       : C4-H2-O4
MOLECULAR WEIGHT        : 114.06
WISWESSER LINE NOTATION : L4VVTJ CQ DQ
COMPOUND DESCRIPTOR     : Tumorigen
SYNONYMS/TRADE NAMES :
   * Cyclobutenedione, dihydroxy-
   * 3-Cyclobutene-1,2-dione, 3,4-dihydroxy-
   * Dihydroxycyclobutenedione
   * 3,4-Dihydroxy-3-cyclobutene-1,2-dione
   * Quadratic acid
   * Squaric acid
 
                       *** HEALTH HAZARD DATA ***
 
                          ** TUMORIGENIC DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 368 mg/kg/92W-I
TOXIC EFFECTS :
   Tumorigenic - equivocal tumorigenic agent by RTECS criteria
   Tumorigenic - tumors at site of application
REFERENCE :
   JNCIAM Journal of the National Cancer Institute.  (Washington, DC)  V.1-60,
   1940-78.  For publisher information, see JJIND8.  Volume(issue)/page/year:
   46,143,1971

                          *** STATUS IN U.S. ***
 
   EPA TSCA Section 8(b) CHEMICAL INVENTORY

 
                            *** END OF RECORD ***