4-Methoxybenzenesulfonamide

Also known as: p-Methoxybenzenesulfonamide, 4-Methoxybenzenesulphonamide, p-Anisolesulfonamide, p-Anisolesulphonamide, Benzenesulfonamide, 4-methoxy- (9CI)

4-Methoxybenzenesulfonamide (CAS 1129-26-6) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C7H9NO3S and a molecular weight of 187.21600 g/mol. Key properties include a melting point of 111-115 °C(lit.), a boiling point of 352.2ºC at 760mmHg, a density of 1.314g/cm3 and a flash point of 166.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1129-26-6
Jingsj CID: J-42061-1
Molecular Formula: C₇H₉NO₃S
Molecular Weight: 187.21600 g/mol
Category: Organic Bases
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	111-115 °C(lit.)
Boiling Point	352.2ºC at 760mmHg
Density	1.314g/cm3
Flash Point	166.8ºC
Exact Mass	187.03000
PSA	77.77000
LogP	2.12370
Vapor Pressure	3.89E-05mmHg at 25°C
Refractive Index	1.552

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-Methoxybenzenesulfonamide?

The CAS number of 4-Methoxybenzenesulfonamide is 1129-26-6.

What are the molecular formula and molecular weight of 4-Methoxybenzenesulfonamide?

4-Methoxybenzenesulfonamide has molecular formula C7H9NO3S and molecular weight 187.21600 g/mol.

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-Methoxybenzenesulfonamide (CAS 1129-26-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42061-1 (accessed 2026-11-09).

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