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3-Methoxyphthalic acid

Also known as: 3-Methoxyphthalic acid, 3-methoxybenzene-1,2-dicarboxylic acid, 1,2-Benzenedicarboxylic acid, 3-methoxy-

3-Methoxyphthalic acid (CAS 14963-97-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H8O5 and a molecular weight of 196.157 g/mol. Key properties include a melting point of 173-174 °C, a boiling point of 395.7±27.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 163.7±17.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
14963-97-4
Jingsj CID
J-1519492-0
Molecular Formula
C9H8O5
Molecular Weight
196.157 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point173-174 °C
Boiling Point395.7±27.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point163.7±17.2 °C
Exact Mass196.037170
PSA83.83000
LogP0.62
Vapor Pressure0.0±1.0 mmHg at 25°C
Refractive Index1.591

Customs & Trade Information

HS Code2918990090
Summary2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3-Methoxyphthalic acid?

The CAS number of 3-Methoxyphthalic acid is 14963-97-4.

What are the molecular formula and molecular weight of 3-Methoxyphthalic acid?

3-Methoxyphthalic acid has molecular formula C9H8O5 and molecular weight 196.157 g/mol.

What are the upstream and downstream products of 3-Methoxyphthalic acid?

For 3-Methoxyphthalic acid, Upstream Products: 2-Methoxybenzoic acid, 2,3-Dimethylanisole, 5-Methoxy-1,2,3,4-tetrahydronaphthalene; Downstream Products: 3-Hydroxyphthalic anhydride, 3-Hydroxyphthalic acid.

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-Methoxyphthalic acid (CAS 14963-97-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1519492-0 (accessed 2026-11-09).

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