p-Toluidine sulfate

Also known as: p-Toluidine sulphate (1:1), p-Toluidinium hydrogen sulfate, 4-Methylaniline sulfate, p-Toluidine hydrogen sulfate, 4-toluidinium hydrogen sulfate

p-Toluidine sulfate (CAS 540-25-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H11NO4S and a molecular weight of 205.23200 g/mol. Key properties include a boiling point of 197.4ºC at 760 mmHg and a flash point of 84.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 540-25-0
Jingsj CID: J-1093797-0
Molecular Formula: C₇H₁₁NO₄S
Molecular Weight: 205.23200 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	197.4ºC at 760 mmHg
Flash Point	84.5ºC
Exact Mass	205.04100
PSA	109.00000
LogP	2.58640

Customs & Trade Information

HS Code	2921430090
Summary	HS:2921430090 toluidines and their derivatives; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of p-Toluidine sulfate?

The CAS number of p-Toluidine sulfate is 540-25-0.

What are the molecular formula and molecular weight of p-Toluidine sulfate?

p-Toluidine sulfate has molecular formula C7H11NO4S and molecular weight 205.23200 g/mol.

What are the upstream and downstream products of p-Toluidine sulfate?

For p-Toluidine sulfate, Downstream Products: 4-Aminotoluene-3-sulfonic acid, Di-p-tolylamine, 5-Amino-2-methylbenzenesulfonic acid.

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

Last updated: 8/21/2026

How to cite: Jingsj. "p-Toluidine sulfate (CAS 540-25-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1093797-0 (accessed 2026-11-09).

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