*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : QK2200000
CHEMICAL NAME           : 1-Naphthalenesulfonic acid,
                          3-hydroxy-4-(2-hydroxy-1-naphthylazo)-, sodium salt
CAS REGISTRY NUMBER     : 2538-85-4
LAST UPDATED            : 199710
DATA ITEMS CITED        : 5
MOLECULAR FORMULA       : C20-H13-N2-O5-S.Na
MOLECULAR WEIGHT        : 416.40
WISWESSER LINE NOTATION : L66J CQ BNUN- BL66J CQ ESWO &-NA-
SYNONYMS/TRADE NAMES :
   * Calcon
   * 3-Hydroxy-4-(2-hydroxy-1-naphthylazo)-1-naphthalenesulfonic acid, sodium  
   salt
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 180 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems
   Laboratory, NIOSH Exchange Chemicals.  (Aberdeen Proving Ground, MD 21010)
   Volume(issue)/page/year: NX#04757

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

NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - X1248
       No. of Facilities: 12 (estimated)
       No. of Industries: 1
       No. of Occupations: 1
       No. of Employees: 481 (estimated)

                          *** STATUS IN U.S. ***
 
   EPA TSCA Section 8(b) CHEMICAL INVENTORY
   
   EPA TSCA Section 8(d) unpublished health/safety studies
   
   EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998

 
                            *** END OF RECORD ***