*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : DC0475000
CHEMICAL NAME           : Benzene, 1,2,3,5-tetramethyl-
CAS REGISTRY NUMBER     : 527-53-7
LAST UPDATED            : 199710
DATA ITEMS CITED        : 6
MOLECULAR FORMULA       : C10-H14
MOLECULAR WEIGHT        : 134.24
WISWESSER LINE NOTATION : 1R B1 C1 E1
COMPOUND DESCRIPTOR     : Primary Irritant
SYNONYMS/TRADE NAMES :
   * Isodurene
   * 1,2,3,5-Tetramethylbenzene
   * 1,3,4,5-Tetramethylbenzene
 
                       *** HEALTH HAZARD DATA ***
 
                      ** SKIN/EYE IRRITATION DATA **
 
TYPE OF TEST            : Standard Draize test
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 100 mg/24H
REACTION SEVERITY       : Mild
REFERENCE :
   DCTODJ Drug and Chemical Toxicology.  (Marcel Dekker, 270 Madison Ave., New
   York, NY 10016) V.1-    1977/78-  Volume(issue)/page/year: 1,219,1978
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 5157 mg/kg
TOXIC EFFECTS :
   Sense Organs and Special Senses (Eye) - lacrimation
   Lungs, Thorax, or Respiration - dyspnea
   Blood - hemorrhage
REFERENCE :
   DCTODJ Drug and Chemical Toxicology.  (Marcel Dekker, 270 Madison Ave., New
   York, NY 10016) V.1-    1977/78-  Volume(issue)/page/year: 1,219,1978

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

NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - X2130
       No. of Facilities: 13 (estimated)
       No. of Industries: 2
       No. of Occupations: 2
       No. of Employees: 279 (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   EPA TSCA Section 8(d) unpublished health/safety studies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 ***