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4-Methylisophthalic acid

Also known as: 5-Methylisophthalic acid, 5-Methyl-1,3-benzenedicarboxylic acid, 4-Methyl-1,3-benzenedicarboxylic acid, 1,3-Benzenedicarboxylic acid, 4-methyl-, 2,4-Toluenedicarboxylic acid, UVITIC ACID, 4-methylisophthalic acid

4-Methylisophthalic acid (CAS 3347-99-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H8O4 and a molecular weight of 180.15700 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3347-99-7
Jingsj CID
J-1394752-9
Molecular Formula
C9H8O4
Molecular Weight
180.15700 g/mol
Category
Organic Acids
Last updated
8/21/2026
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Physicochemical Properties

Exact Mass180.04200
PSA74.60000
LogP1.39140

Frequently Asked Questions

What is the CAS number of 4-Methylisophthalic acid?

The CAS number of 4-Methylisophthalic acid is 3347-99-7.

What are the molecular formula and molecular weight of 4-Methylisophthalic acid?

4-Methylisophthalic acid has molecular formula C9H8O4 and molecular weight 180.15700 g/mol.

What are the upstream and downstream products of 4-Methylisophthalic acid?

For 4-Methylisophthalic acid, Upstream Products: 4-Methylisophthalonitrile, Carbon dioxide, 3-Bromo-4-methylbenzoic acid; Downstream Products: Dimethyl 4-(bromomethyl)isophthalate, Dimethyl 4-methylisophthalate.

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

Last updated:

How to cite: Jingsj. "4-Methylisophthalic acid (CAS 3347-99-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1394752-9 (accessed 2026-11-09).

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