4,5-DIFLUOROPHTHALIC ANHYDRIDE
Synonym(s):4,5-Difluorophthalic anhydride
- CAS NO.：18959-30-3
- Empirical Formula: C8H2F2O3
- Molecular Weight: 184.1
- MDL number: MFCD08695033
- EINECS: 808-095-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:17:01
What is 4,5-DIFLUOROPHTHALIC ANHYDRIDE?
The Uses of 4,5-DIFLUOROPHTHALIC ANHYDRIDE
4,5-Difluorophthalic anhydride is a cyclo-anhydride compound with a wide range of applications in a variety of fields including chemicals, plastics, agrochemicals and pharmaceuticals. It can be reacted chemically with several nucleophiles, including thiocarbamoyl hydrazide and different amines, to produce carboxylic acid derivatives arising from anhydride open-circuit, i.e., phthalimide and dicarboxylic acid products.
General Description
4,5-Difluorophthalic anhydride (CPA) is located on the twofold axis of the space group C2/c; the molecules are stacked in a two-dimensional sheet. It has a similar two-dimensional molecular sheet as 5,6-dichlorobenzfurazan 1-oxide (CBF), 4,5-dibromophthalic anhydride. The disordered CBF molecule is pseudoisomeric with the CPA molecule.
Properties of 4,5-DIFLUOROPHTHALIC ANHYDRIDE
| Melting point: | 99-100℃ |
| Boiling point: | 321.2±32.0 °C(Predicted) |
| Density | 1.658 |
| storage temp. | Store below +30°C. |
| color | Gray |
| CAS DataBase Reference | 18959-30-3(CAS DataBase Reference) |
Safety information for 4,5-DIFLUOROPHTHALIC ANHYDRIDE
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. |
Computed Descriptors for 4,5-DIFLUOROPHTHALIC ANHYDRIDE
| InChIKey | UATBWQQFLABWKR-UHFFFAOYSA-N |
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