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2-Methoxybenzenesulfonic acid

Also known as: 2-Methoxy-benzenesulfonic acid, o-Methoxybenzenesulfonic acid, Benzenesulfonic acid, 2-methoxy-, Anisol-2-sulfonsaeure, Anisol-o-sulfonsaeure, o-Anizol-1-sulfonsaeure, 2-Methoxy-benzolsulfonsaeure, methoxybenzenesulfonic acid

2-Methoxybenzenesulfonic acid (CAS 34256-00-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H8O4S and a molecular weight of 188.20100 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
34256-00-3
Jingsj CID
J-1382219-0
Molecular Formula
C7H8O4S
Molecular Weight
188.20100 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Exact Mass188.01400
PSA71.98000
LogP2.02270

Customs & Trade Information

HS Code2909309090
Summary2909309090 other aromatic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2-Methoxybenzenesulfonic acid?

The CAS number of 2-Methoxybenzenesulfonic acid is 34256-00-3.

What are the molecular formula and molecular weight of 2-Methoxybenzenesulfonic acid?

2-Methoxybenzenesulfonic acid has molecular formula C7H8O4S and molecular weight 188.20100 g/mol.

What are the upstream and downstream products of 2-Methoxybenzenesulfonic acid?

For 2-Methoxybenzenesulfonic acid, Upstream Products: Anisole, 2-Hydroxybenzenesulfonic acid, iodomethane; Downstream Products: Catechol.

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

Last updated:

How to cite: Jingsj. "2-Methoxybenzenesulfonic acid (CAS 34256-00-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1382219-0 (accessed 2026-11-09).

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