*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : QK1490000
CHEMICAL NAME           : 1-Naphthalenesulfonic acid, 3,4-dihydro-3,4-dioxo-,
                          sodium salt
CAS REGISTRY NUMBER     : 521-24-4
LAST UPDATED            : 199701
DATA ITEMS CITED        : 3
MOLECULAR FORMULA       : C10-H6-O5-S.Na
MOLECULAR WEIGHT        : 261.21
WISWESSER LINE NOTATION : L66 BVVJ ESWQ &-NA-
SYNONYMS/TRADE NAMES :
   * beta-Naphthoquinone-4-sulfonate sodium salt
   * Sodium 3,4-dihydro-3,4-dioxo-1-naphthalenesulfonate
   * Sodium beta-naphthoquinone-4-sulfonate
   * Sodium 1,2-naphthoquinone-4-sulfonate
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 625 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   NTIS** National Technical Information Service.  (Springfield, VA 22161)
   Formerly U.S. Clearinghouse for Scientific & Technical Information.
   Volume(issue)/page/year: AD691-490

         *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA ***

NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - X7927
       No. of Facilities: 25 (estimated)
       No. of Industries: 1
       No. of Occupations: 1
       No. of Employees: 1358 (estimated)
       No. of Female Employees: 956 (estimated)

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

 
                            *** END OF RECORD ***