Phthalic Anhydride
CAS 85-44-9 · C8H4O3 · 148.11 g/mol
Reference entryBasic Chemicals
Phthalic Anhydride (CAS 85-44-9) is a chemical substance with the molecular formula C8H4O3 and a molecular weight of 148.11 g/mol.
This is a public reference record for a chemical substance. No supplier has been verified for it yet.
| IUPAC name | 2-benzofuran-1,3-dione |
|---|---|
| Molecular formula | C8H4O3 |
| Molecular weight | 148.11 |
| InChIKey | LGRFSURHDFAFJT-UHFFFAOYSA-N |
| SMILES | C1=CC=C2C(=C1)C(=O)OC2=O |

Primary hazards
Signal word: Danger
Corrosive
Irritant
Health Hazard
- H302Harmful if swallowed
- H315Causes skin irritation
- H317May cause an allergic skin reaction
- H318Causes serious eye damage
- H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
- H335May cause respiratory irritation
Hazard classification is reproduced from the source dataset. Always confirm against the supplier safety data sheet before handling.
Synonyms
- PHTHALIC ANHYDRIDE
- 85-44-9
- 1,3-Isobenzofurandione
- 2-Benzofuran-1,3-dione
- Phthalandione
- Retarder esen
- 1,3-Dioxophthalan
- 1,3-Phthalandione
- Phthalic acid anhydride
- Retarder AK
- +50 more
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