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Substance Name: Phthalic anhydride
RN: 85-44-9
UNII: UVL263I5BJ
InChIKey: LGRFSURHDFAFJT-UHFFFAOYSA-N

Molecular Formula

  • C8-H4-O3

Molecular Weight

  • 148.1166
 

Classification Codes

Classification Codes

  • Mutation Data
  • Reproductive Effect
  • Skin / Eye Irritant
  • Tumor Data

Superlist Classification Codes

  • Reportable Quantity (RQ) = 5000 lb
  • TWA (1 ppm); Sensitizer; Not classifiable as a human carcinogen
  • TWA 2 ppm (12 mg/m3)
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Names and Synonyms

Name of Substance

  • Phthalic anhydride

Synonyms

  • 1,2-Benzenedicarboxylic acid anhydride
  • 1,2-Benzenedicarboxylic anhydride
  • 1,3-Dioxophthalan
  • 1,3-Isobenzofurandione
  • 1,3-Phthalandione
  • AI3-04869
  • Anhydrid kyseliny ftalove
  • Anhydrid kyseliny ftalove [Czech]
  • Anhydride phtalique
  • Anhydride phtalique [French]
  • Anidride ftalica
  • Anidride ftalica [Italian]
  • CCRIS 519
  • EC 201-607-5
  • EINECS 201-607-5
  • ESEN
  • Ftaalzuuranhydride
  • Ftaalzuuranhydride [Dutch]
  • Ftalanhydrid
  • Ftalanhydrid [Czech]
  • Ftalowy bezwodnik
  • Ftalowy bezwodnik [Polish]
  • HSDB 4012
  • Isobenzofuran, 1,3-dihydro-1,3-dioxo-
  • NCI-C03601
  • NSC 10431
  • o-Phthalic acid anhydride
  • Pan
  • Phthalandione
  • Phthalic acid anhydride
  • Phthalic anhydride
  • Phthalsaeureanhydrid
  • Phthalsaeureanhydrid [German]
  • RCRA waste number U190
  • Retarder AK
  • Retarder esen
  • Retarder PD
  • TGL 6525
  • UNII-UVL263I5BJ
  • Vulkalent B
  • Vulkalent B/C
  • Wiltrol P

Systematic Names

  • 1,3-Isobenzofurandione
  • Phthalic anhydride

Superlist Names

  • 1,3-Isobenzofurandione
  • Phthalic anhydride
  • Phthalic anhydride (molten)
  • Phthalic anhydride with >0.05% maleic anhydride
  • Phthalic anhydride with >0.05% maleic anhydride [UN2214] [Corrosive]
  • RCRA waste no. U190
  • UN2214

Registry Numbers

CAS Registry Number

  • 85-44-9

FDA UNII

  • UVL263I5BJ

Other Registry Number

  • 39363-63-8

System Generated Number

  • 0000085449

Structure Descriptors

InChI

InChI=1S/C8H4O3/c9-7-5-3-1-2-4-6(5)8(10)11-7/h1-4H

InChIKey

LGRFSURHDFAFJT-UHFFFAOYSA-N

Smiles

O=C1OC(=O)c2ccccc12

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
cat LD50 oral 800mg/kg (800mg/kg)   "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986Vol. -, Pg. 322, 1986.
guinea pig LD50 intraperitoneal 100mg/kg (100mg/kg)   "Practical Toxicology of Plastics," Lefaux, R., Cleveland, OH, Chemical Rubber Co., 1968Vol. -, Pg. 410, 1968.
mouse LD50 oral 1500mg/kg (1500mg/kg)   "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 100, 1982.
rabbit LD50 skin > 10gm/kg (10000mg/kg)   BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets. Vol. 13-4/1970,
rat LC50 inhalation > 210mg/m3/1H (210mg/m3)   BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets. Vol. 13-4/1970,
rat LD50 oral 1530mg/kg (1530mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) Acute Toxicity Data. Journal of the American College of Toxicology, Part B. Vol. 15(Suppl,

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point 130.8 deg C   EXP
Boiling Point 295 deg C   EXP
log P (octanol-water) 1.6 (none)   EXP
Water Solubility 6200 mg/L 25 EXP
Henry's Law Constant 1.63E-08 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 7.49E-13 cm3/molecule-sec 25 EST

Physical property data is provided to ChemIDplus by SRC, Inc.