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5-Amino-1,3,4-thiadiazole-2-sulfonamide

5-氨基-1,3,4-噻二唑-2-磺酰胺

Also known as: 1,3,4-Thiadiazole-2-sulfonamide, 5-amino-, 2-Amino-1,3,4-thiadiazole-5-sulfonamide, CL 5343, Nsc22979, Tio-urasin, Acetazolamide impurity D, Desacetyl acetazolamide, 5-Amino-TDSNH2

5-Amino-1,3,4-thiadiazole-2-sulfonamide (CAS 14949-00-9) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C2H4N4O2S2 and a molecular weight of 180.20900 g/mol. It is also known as 1,3,4-Thiadiazole-2-sulfonamide, 5-amino-, 2-Amino-1,3,4-thiadiazole-5-sulfonamide and CL 5343. Key properties include a melting point of 188-190°C (lit.), a boiling point of 484.2ºC at 760 mmHg, a density of 1.865g/cm3 and a flash point of 246.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
14949-00-9
Jingsj CID
J-1027215-8
Molecular Formula
C2H4N4O2S2
Chinese Name
5-氨基-1,3,4-噻二唑-2-磺酰胺
Molecular Weight
180.20900 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point188-190°C (lit.)
Boiling Point484.2ºC at 760 mmHg
Density1.865g/cm3
Flash Point246.6ºC

Frequently Asked Questions

What is the CAS number of 5-Amino-1,3,4-thiadiazole-2-sulfonamide?

The CAS number of 5-Amino-1,3,4-thiadiazole-2-sulfonamide is 14949-00-9.

What are the molecular formula and molecular weight of 5-Amino-1,3,4-thiadiazole-2-sulfonamide?

5-Amino-1,3,4-thiadiazole-2-sulfonamide has molecular formula C2H4N4O2S2 and molecular weight 180.20900 g/mol.

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

Last updated:

How to cite: Jingsj. "5-Amino-1,3,4-thiadiazole-2-sulfonamide (CAS 14949-00-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1027215-8 (accessed 2026-10-25).

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