4-Chloro-N-(pyridin-2-yl)benzenesulfonamide

Also known as: 4-chloro-N-2-pyridinylbenzenesulfonamide, Benzenesulfonamide, 4-chloro-N-2-pyridinyl-, 2-(4-Chlorobenzenesulfonamido)pyridine, 4-Chloro-N-2-pyridinylbenzenesulfonamide, 2-(4-Chlor-benzolsulfonylamino)-pyridin

4-Chloro-N-(pyridin-2-yl)benzenesulfonamide (CAS 1213-38-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H9ClN2O2S and a molecular weight of 268.71900 g/mol. Key properties include a boiling point of 430.3ºC at 760 mmHg, a density of 1.462g/cm3 and a flash point of 214.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1213-38-3
Jingsj CID: J-1155641-5
Molecular Formula: C₁₁H₉ClN₂O₂S
Molecular Weight: 268.71900 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	430.3ºC at 760 mmHg
Density	1.462g/cm3
Flash Point	214.1ºC
Exact Mass	268.00700
PSA	67.44000
LogP	3.68960
Vapor Pressure	1.31E-07mmHg at 25°C
Refractive Index	1.644

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 4-Chloro-N-(pyridin-2-yl)benzenesulfonamide?

The CAS number of 4-Chloro-N-(pyridin-2-yl)benzenesulfonamide is 1213-38-3.

What are the molecular formula and molecular weight of 4-Chloro-N-(pyridin-2-yl)benzenesulfonamide?

4-Chloro-N-(pyridin-2-yl)benzenesulfonamide has molecular formula C11H9ClN2O2S and molecular weight 268.71900 g/mol.

What are the upstream and downstream products of 4-Chloro-N-(pyridin-2-yl)benzenesulfonamide?

For 4-Chloro-N-(pyridin-2-yl)benzenesulfonamide, Upstream Products: 2-Aminopyridine, 4-Chlorobenzenesulfonyl chloride; Downstream Products: Sulfapyridine.

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. "4-Chloro-N-(pyridin-2-yl)benzenesulfonamide (CAS 1213-38-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1155641-5 (accessed 2026-11-09).

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