*** CHEMICAL IDENTIFICATION ***
RTECS NUMBER : DB9300000
CHEMICAL NAME : 1,2,4,5 Benzenetetracarboxylic 1,2:4,5 dianhydride
CAS REGISTRY NUMBER : 89-32-7
LAST UPDATED : 199712
DATA ITEMS CITED : 9
MOLECULAR FORMULA : C10-H2-O6
MOLECULAR WEIGHT : 218.12
WISWESSER LINE NOTATION : T C565 DVOV JVOVJ
SYNONYMS/TRADE NAMES :
* 1H,3H-Benzo(1,2-c:4,5-c')difuran-1,3,5,7-tetrone
* Pyromellitic acid anhydride
* Pyromellitic acid dianhydride
* Pyromellitic anhydride
* Pyromellitic dianhydride
* Pyromellitic 1,2:4,5-dianhydride
*** HEALTH HAZARD DATA ***
** ACUTE TOXICITY DATA **
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 2250 mg/kg
TOXIC EFFECTS :
Behavioral - excitement
Behavioral - ataxia
Lungs, Thorax, or Respiration - dyspnea
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O
Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936-
Volume(issue)/page/year: 51(11),79,1986
TYPE OF TEST : LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 150 mg/m3/4H
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
85GMAT "Toxicometric Parameters of Industrial Toxic Chemicals Under Single
Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects,
GKNT, 1982 Volume(issue)/page/year: -,105,1982
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 2400 mg/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity)
Behavioral - changes in motor activity (specific assay)
Behavioral - muscle weakness
REFERENCE :
TPKVAL Toksikologiya Novykh Promyshlennykh Khimicheskikh Veshchestv.
Toxicology of New Industrial Chemical Substances. For English translation,
see TNICS*. (Izdatel'stvo Meditsina, Moscow, USSR) No.1- 1961-
Volume(issue)/page/year: 14,125,1975
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - guinea pig
DOSE/DURATION : 1595 mg/kg
TOXIC EFFECTS :
Behavioral - excitement
Behavioral - ataxia
Lungs, Thorax, or Respiration - dyspnea
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O
Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936-
Volume(issue)/page/year: 51(11),79,1986
** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 1320 mg/kg/30D-I
TOXIC EFFECTS :
Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol)
Biochemical - Enzyme inhibition, induction, or change in blood or tissue
levels - true cholinesterase
Biochemical - Enzyme inhibition, induction, or change in blood or tissue
levels - phosphatases
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O
Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936-
Volume(issue)/page/year: 51(11),79,1986
*** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA ***
NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
NOHS - National Occupational Hazard Survey (1974)
NOHS Hazard Code - 84105
No. of Facilities: 62 (estimated)
No. of Industries: 6
No. of Occupations: 9
No. of Employees: 721 (estimated)
NOES - National Occupational Exposure Survey (1983)
NOES Hazard Code - 84105
No. of Facilities: 64 (estimated)
No. of Industries: 4
No. of Occupations: 3
No. of Employees: 1926 (estimated)
No. of Female Employees: 728 (estimated)
*** STATUS IN U.S. ***
EPA TSCA Section 8(b) CHEMICAL INVENTORY
EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998
*** END OF RECORD ***