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2,4,5-Trimethylbenzenesulfonic acid

Also known as: Pseudocumene-5-sulfonic acid, 1,2,4-Trimethyl-5-benzenesulfonic acid, Benzenesulfonic acid, 2,4,5-trimethyl-, NSC 163978

2,4,5-Trimethylbenzenesulfonic acid (CAS 3453-84-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H12O3S and a molecular weight of 200.25500 g/mol. Key property: a density of 1.243g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3453-84-7
Jingsj CID
J-34152-6
Molecular Formula
C9H12O3S
Molecular Weight
200.25500 g/mol
Category
Organic Acids
Last updated
8/21/2026
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Physicochemical Properties

Density1.243g/cm3
Exact Mass200.05100
PSA62.75000
LogP2.93930
Refractive Index1.545

Customs & Trade Information

HS Code2904100000
Summary2904100000 derivatives containing only sulpho groups, their salts and ethyl esters。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2,4,5-Trimethylbenzenesulfonic acid?

The CAS number of 2,4,5-Trimethylbenzenesulfonic acid is 3453-84-7.

What are the molecular formula and molecular weight of 2,4,5-Trimethylbenzenesulfonic acid?

2,4,5-Trimethylbenzenesulfonic acid has molecular formula C9H12O3S and molecular weight 200.25500 g/mol.

What are the upstream and downstream products of 2,4,5-Trimethylbenzenesulfonic acid?

For 2,4,5-Trimethylbenzenesulfonic acid, Upstream Products: 1,2,4-TRIMETHYL BENZENE, 2,4,5-Trimethylbenzophenone; Downstream Products: 2,4,5-Trimethylphenol, 1-bromo-2,4,5-trimethylbenzene, 1,2,4-TRIMETHYL BENZENE.

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

Last updated:

How to cite: Jingsj. "2,4,5-Trimethylbenzenesulfonic acid (CAS 3453-84-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34152-6 (accessed 2026-11-09).

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