3-Fluorophthalic anhydride
Also known as: 4-Fluoro-2-benzofuran-1,3-dione, 4-Fluoroisobenzofuran-1,3-dione, 3-fluorophthalic acid anhydride, 3-fluoro-phthalic anhydride, 1,3-Isobenzofurandione, 4-fluoro-, 4-Fluoro-1,3-Isobenzofurandione
3-Fluorophthalic anhydride (CAS 652-39-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H3FO3 and a molecular weight of 166.106 g/mol. Key properties include a melting point of 159-163 °C, a boiling point of 303.3±25.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 132.8±18.1 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H317 — May cause an allergic skin reaction and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 652-39-1
- Jingsj CID
- J-1965054-5
- Molecular Formula
- C8H3FO3
- Molecular Weight
- 166.106 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 159-163 °C |
|---|---|
| Boiling Point | 303.3±25.0 °C at 760 mmHg |
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 132.8±18.1 °C |
| Exact Mass | 166.006622 |
| PSA | 43.37000 |
| LogP | 1.65 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.583 |
| Additional Property | insoluble |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H317 — May cause an allergic skin reaction
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Frequently Asked Questions
What is the CAS number of 3-Fluorophthalic anhydride?
The CAS number of 3-Fluorophthalic anhydride is 652-39-1.
What are the molecular formula and molecular weight of 3-Fluorophthalic anhydride?
3-Fluorophthalic anhydride has molecular formula C8H3FO3 and molecular weight 166.106 g/mol.
Is 3-Fluorophthalic anhydride hazardous?
3-Fluorophthalic anhydride has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H317 — May cause an allergic skin reaction; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 3-Fluorophthalic anhydride?
For 3-Fluorophthalic anhydride, Upstream Products: 3-Fluorophthalic acid, 3-Chlorophthalic anhydride, 3-Fluoro-o-xylene; Downstream Products: 2-Amino-3-fluorobenzoic acid, 2-Amino-6-fluorobenzoic acid, 6-Fluoroisatoic anhydride.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Fluorophthalic anhydride (CAS 652-39-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1965054-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.