4-(5-Formyl-2-furyl)benzene-1-sulfonamide

4-(5-甲酰基-2-呋喃基)苯-1-磺酰胺

Also known as: 4-(5-Formylfuran-2-yl)benzenesulfonamide, 4-(5-Formyl-2-furanyl)benzenesulfonamide, Benzenesulfonamide, 4-(5-formyl-2-furanyl)-, 4-(5-Formylfur-2-yl)benzenesulphonamide, 4-(5-Formyl-2-furyl)benzenesulfonamide, 2-Formyl-5-(4-sulphamoylphenyl)furan, 5-[4-(Aminosulphonyl)phenyl]-2-furaldehyde, AKOS BB-8350, ART-CHEM-BB B025368, ASISCHEM S89480, AURORA KA-4223, TIMTEC-BB SBB000902

4-(5-Formyl-2-furyl)benzene-1-sulfonamide (CAS 21821-40-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H9NO4S and a molecular weight of 251.25800 g/mol. It is also known as 4-(5-Formylfuran-2-yl)benzenesulfonamide, 4-(5-Formyl-2-furanyl)benzenesulfonamide and Benzenesulfonamide, 4-(5-formyl-2-furanyl)-. Key properties include a melting point of 199ºC, a boiling point of 493.1ºC at 760 mmHg, a density of 1.41 g/cm3 and a flash point of 252ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21821-40-9
Jingsj CID
J-1072442-0
Molecular Formula
C11H9NO4S
Chinese Name
4-(5-甲酰基-2-呋喃基)苯-1-磺酰胺
Molecular Weight
251.25800 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point199ºC
Boiling Point493.1ºC at 760 mmHg
Density1.41 g/cm3
Flash Point252ºC

Frequently Asked Questions

What is the CAS number of 4-(5-Formyl-2-furyl)benzene-1-sulfonamide?

The CAS number of 4-(5-Formyl-2-furyl)benzene-1-sulfonamide is 21821-40-9.

What are the molecular formula and molecular weight of 4-(5-Formyl-2-furyl)benzene-1-sulfonamide?

4-(5-Formyl-2-furyl)benzene-1-sulfonamide has molecular formula C11H9NO4S and molecular weight 251.25800 g/mol.

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

Last updated:

How to cite: Jingsj. "4-(5-Formyl-2-furyl)benzene-1-sulfonamide (CAS 21821-40-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1072442-0 (accessed 2026-10-26).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.