3-Fluorophthalic anhydride

3-氟邻苯二甲酸酐

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. It is also known as 4-Fluoro-2-benzofuran-1,3-dione, 4-Fluoroisobenzofuran-1,3-dione and 3-fluorophthalic acid anhydride. 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. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
652-39-1
Jingsj CID
J-1965054-0
Molecular Formula
C8H3FO3
Chinese Name
3-氟邻苯二甲酸酐
Molecular Weight
166.106 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point159-163 °C
Boiling Point303.3±25.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point132.8±18.1 °C

GHS Safety & Compliance

IrritantSignal word: Warning

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.

Data compiled from public chemical databases 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-1965054-0 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.