*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : ON0875000
CHEMICAL NAME           : Maleic acid, dibutyl ester
CAS REGISTRY NUMBER     : 105-76-0
BEILSTEIN REFERENCE NO. : 1726634
REFERENCE               : 4-02-00-02209 (Beilstein Handbook Reference)
LAST UPDATED            : 199806
DATA ITEMS CITED        : 7
MOLECULAR FORMULA       : C12-H20-O4
MOLECULAR WEIGHT        : 228.32
WISWESSER LINE NOTATION : 4OV1U1VO4  -C
COMPOUND DESCRIPTOR     : Primary Irritant
SYNONYMS/TRADE NAMES :
   * 2-Butenedioic acid, dibutyl ester
   * Butyl maleate
   * Dibutylester kyseliny maleinove
   * Dibutyl maleate
   * PX-504
   * RC Comonomer DBM
   * Staflex DBM
 
                       *** HEALTH HAZARD DATA ***
 
                      ** SKIN/EYE IRRITATION DATA **
 
TYPE OF TEST            : Open irritation test
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 500 mg
REACTION SEVERITY       : Mild
REFERENCE :
   UCDS** Union Carbide Data Sheet.  (Union Carbide Corp., 39 Old Ridgebury
   Rd., Danbury, CT 06817)  Volume(issue)/page/year: 11/27/1963
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 3700 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   NPIRI* Raw Material Data Handbook, Vol.1: Organic Solvents, 1974. (National
   Assoc. of Printing Ink Research Institute, Francis McDonald Sinclair
   Memorial Laboratory, Lehigh Univ., Bethlehem, PA 18015)
   Volume(issue)/page/year: 2,19,1975
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 150 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
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 10 gm/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   NPIRI* Raw Material Data Handbook, Vol.1: Organic Solvents, 1974. (National
   Assoc. of Printing Ink Research Institute, Francis McDonald Sinclair
   Memorial Laboratory, Lehigh Univ., Bethlehem, PA 18015)
   Volume(issue)/page/year: 2,19,1975

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

NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
   NOHS - National Occupational Hazard Survey (1974)
     NOHS Hazard Code - M1029
       No. of Facilities: 178 (estimated)
       No. of Industries: 1
       No. of Occupations: 1
       No. of Employees: 4094 (estimated)
   
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - M1029
       No. of Facilities: 37 (estimated)
       No. of Industries: 1
       No. of Occupations: 1
       No. of Employees: 402 (estimated)

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

 
                            *** END OF RECORD ***