*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : XF8100000
CHEMICAL NAME           : 2H-Tetrazolium, 2,3,5-triphenyl-, chloride
CAS REGISTRY NUMBER     : 298-96-4
LAST UPDATED            : 199701
DATA ITEMS CITED        : 4
MOLECULAR FORMULA       : C19-H15-N4.Cl
MOLECULAR WEIGHT        : 334.83
WISWESSER LINE NOTATION : T5NNKNJ BR& CR& ER &G
SYNONYMS/TRADE NAMES :
   * PTB
   * Red tetrazolium
   * Tetrzolium chloride
   * TPTZ
   * 2,3,5-Triphenyl-2H-tetrazolium chloride
   * TT
   * TTC
   * Urocheck
   * Uroscreen
   * Vitastain
 
                       *** 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           : 5600 ug/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#00925

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

NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
   NOHS - National Occupational Hazard Survey (1974)
     NOHS Hazard Code - 83592
       No. of Facilities: 11 (estimated)
       No. of Industries: 1
       No. of Occupations: 1
       No. of Employees: 32 (estimated)
   
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - 83592
       No. of Facilities: 32 (estimated)
       No. of Industries: 1
       No. of Occupations: 2
       No. of Employees: 1665 (estimated)
       No. of Female Employees: 1207 (estimated)

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

 
                            *** END OF RECORD ***