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5-Fluoroisophthalic Acid

Also known as: 1,3-Benzenedicarboxylic acid, 5-fluoro-, 5-FLUORO-ISOPHTHALIC ACID, 5-Fluorobenzene-1,3-dicarboxylic acid, 5-fluorobenzene-1,3-dicarboxylic acid, JACS-1583-66-0, Nsc302311

5-Fluoroisophthalic Acid (CAS 1583-66-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H5FO4 and a molecular weight of 184.12100 g/mol. Key properties include a melting point of 295-297ºC, a boiling point of 407.7ºC at 760mmHg, a density of 1.551g/cm3 and a flash point of 200.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1583-66-0
Jingsj CID
J-1056796-1
Molecular Formula
C8H5FO4
Molecular Weight
184.12100 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point295-297ºC
Boiling Point407.7ºC at 760mmHg
Density1.551g/cm3
Flash Point200.4ºC
Exact Mass184.01700
PSA74.60000
LogP1.22210
Vapor Pressure2.23E-07mmHg at 25°C
Refractive Index1.59

Customs & Trade Information

HS Code2917399090
Summary2917399090 aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 5-Fluoroisophthalic Acid?

The CAS number of 5-Fluoroisophthalic Acid is 1583-66-0.

What are the molecular formula and molecular weight of 5-Fluoroisophthalic Acid?

5-Fluoroisophthalic Acid has molecular formula C8H5FO4 and molecular weight 184.12100 g/mol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "5-Fluoroisophthalic Acid (CAS 1583-66-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1056796-1 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.