2-[[(4-Aminophenyl)sulfonyl]amino]-4-thiazoleacetic acid

Also known as: (2-Sulfanilylamino-thiazol-4-yl)-acetic acid, (2-Sulfanilylamino-thiazol-4-yl)-essigsaeure, 2-[2-[(4-aminophenyl)sulfonylamino]-1,3-thiazol-4-yl]acetic acid, [2-(4-aminobenzenesulfonylamino)-1,3-thiazol-4-yl]acetic acid, 4-Thiazoleacetic acid, 2-[[(4-aminophenyl)sulfonyl]amino]-, N1-[4-(carboxymethyl)-2-thiazolyl]sulfanilamide

2-[[(4-Aminophenyl)sulfonyl]amino]-4-thiazoleacetic acid (CAS 135285-81-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H11N3O4S2 and a molecular weight of 313.35300 g/mol. Key properties include a boiling point of 602.32ºC at 760 mmHg, a density of 1.641g/cm3 and a flash point of 318.072ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 135285-81-3
Jingsj CID: J-1502818-9
Molecular Formula: C₁₁H₁₁N₃O₄S₂
Molecular Weight: 313.35300 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	602.32ºC at 760 mmHg
Density	1.641g/cm3
Flash Point	318.072ºC
Exact Mass	313.01900
PSA	159.00000
LogP	2.88820
Vapor Pressure	0mmHg at 25°C
Refractive Index	1.707

Customs & Trade Information

HS Code	2935009090
Summary	2935009090 other sulphonamides VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:35.0%

Frequently Asked Questions

What is the CAS number of 2-[[(4-Aminophenyl)sulfonyl]amino]-4-thiazoleacetic acid?

The CAS number of 2-[[(4-Aminophenyl)sulfonyl]amino]-4-thiazoleacetic acid is 135285-81-3.

What are the molecular formula and molecular weight of 2-[[(4-Aminophenyl)sulfonyl]amino]-4-thiazoleacetic acid?

2-[[(4-Aminophenyl)sulfonyl]amino]-4-thiazoleacetic acid has molecular formula C11H11N3O4S2 and molecular weight 313.35300 g/mol.

What are the upstream and downstream products of 2-[[(4-Aminophenyl)sulfonyl]amino]-4-thiazoleacetic acid?

For 2-[[(4-Aminophenyl)sulfonyl]amino]-4-thiazoleacetic acid, Upstream Products: Ethyl 2-amino-4-thiazoleacetate, N-Acetylsulfanilyl chloride, 2-Amino-4-thiazoleacetic 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. "2-[[(4-Aminophenyl)sulfonyl]amino]-4-thiazoleacetic acid (CAS 135285-81-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1502818-9 (accessed 2026-11-09).

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