*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : CU8150000
CHEMICAL NAME           : Benzaldehyde, 2,2'-tellurobis-
CAS REGISTRY NUMBER     : 77446-40-3
BEILSTEIN REFERENCE NO. : 5521185
LAST UPDATED            : 199712
DATA ITEMS CITED        : 16
MOLECULAR FORMULA       : C14-H10-O2-Te
MOLECULAR WEIGHT        : 337.84
COMPOUND DESCRIPTOR     : Drug
SYNONYMS/TRADE NAMES :
   * Bis(o-formylphenyl)telluride
   * Bis(o-formylphenyl)tellurium
   * Tellurium, bis(o-formylphenyl)-
   * 2,2'-Tellurobisbenzaldehyde
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 250 mg/kg
TOXIC EFFECTS :
   Behavioral - convulsions or effect on seizure threshold
   Behavioral - changes in motor activity (specific assay)
   Lungs, Thorax, or Respiration - dyspnea
REFERENCE :
   PCJOAU Pharmaceutical Chemistry Journal (English Translation).  Translation
   of KHFZAN. (Plenum Pub. Corp., 233 Spring St., New York, NY 10013)  No.1-
   1967-  Volume(issue)/page/year: 16,673,1982

                              *** REVIEWS ***
 
   ACGIH TLV-TWA 0.1 mg(Te)/m3
   DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices
   (BEIs) booklet issues by American Conference of Governmental Industrial
   Hygienists (ACGIH), Cincinnati, OH, 1996  Volume(issue)/page/year:
   TLV/BEI,1997

                    *** OCCUPATIONAL EXPOSURE LIMITS ***
 
   OEL-AUSTRALIA:TWA 0.1 mg(Te)/m3 JAN 1993
   
   OEL-BELGIUM:TWA 0.1 mg(Te)/m3 JAN 1993
   
   OEL-DENMARK:TWA 0.1 mg(Te)/m3 JAN 1993
   
   OEL-FINLAND:TWA 0.1 mg(Te)/m3;STEL 0.3 mg(Te)/m3 JAN 1993
   
   OEL-FRANCE:TWA 0.1 mg(Te)/m3 JAN 1993
   
   OEL-GERMANY:TWA 0.1 mg(Te)/m3 JAN 1993
   
   OEL-THE NETHERLANDS:TWA 0.1 mg(Te)/m3 JAN 1993
   
   OEL-THE PHILIPPINES:TWA 0.1 mg(Te)/m3 JAN 1993
   
   OEL-SWEDEN:TWA 0.1 mg(Te)/m3 JAN 1993
   
   OEL-SWITZERLAND:TWA 0.1 mg(Te)/m3;STEL 0.5 mg(Te)/m3 JAN 1993
   
   OEL-TURKEY:TWA 0.1 mg(Te)/m3 JAN 1993
   
   OEL-UNITED KINGDOM:TWA 0.1 mg(Te)/m3 JAN 1993
   
   OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV
   
   OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV

 
                            *** END OF RECORD ***