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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Reference substances

Reference substances

Currently viewing:
IUPAC name:
2-benzofuran-1,3-dione

Inventory

EC number:
201-607-5
EC name:
Phthalic anhydride
CAS number:
85-44-9
CAS number:
85-44-9
Synonyms
Names:
Identifier:
ChemSpider ID
6552
Identifier:
common name
1,2-Benzenedicarboxylic acid anhydride
Identifier:
common name
1,2-Benzenedicarboxylic anhydride
Identifier:
common name
1,3-Dihydro-1,3-dioxoisobenzofurane
Identifier:
common name
1,3-Dioxophthalane
Identifier:
common name
1,3-Phthalandione
Identifier:
common name
Isobenzofurane, 1,3-dihydro-1,3-dioxo-
Identifier:
common name
Isobenzof​uran-1,3-​dione
Identifier:
common name
Phthalandione
Identifier:
common name
Phthalic acid anhydride
Identifier:
PubChem
6811

Molecular and structural information

Molecular formula:
C8H4O3
Molecular weight:
148.116
SMILES notation:
C1=CC=C2C(=C1)C(=O)OC2=O
InChl:
InChI=1S/C8H4O3/c9-7-5-3-1-2-4-6(5)8(10)11-7/h1-4H
Structural formula:
Chemical structure

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