4-Amino-3-pyridinesulfonamide

Also known as: 3-Pyridinesulfonamide, 4-amino-, 4-Aminopyridine-3-sulfonamide, 4-Amino-3-pyridinesulphonamide, 4-aminopyridine-3-sulfonic acid amide, 4-amino-3-pyridylsulfonamide, 5-amino-3-pyridinesulfonamide, 4-aminopyridine-3-sulfonylamide

4-Amino-3-pyridinesulfonamide (CAS 75903-62-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H7N3O2S and a molecular weight of 173.193 g/mol. Key properties include a boiling point of 476.5±55.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 242.0±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 75903-62-7
Jingsj CID: J-934603-6
Molecular Formula: C₅H₇N₃O₂S
Molecular Weight: 173.193 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point	476.5±55.0 °C at 760 mmHg
Density	1.5±0.1 g/cm3
Flash Point	242.0±31.5 °C
Exact Mass	173.025894
PSA	107.45000
LogP	0.23
Vapor Pressure	0.0±1.2 mmHg at 25°C
Refractive Index	1.632

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-Amino-3-pyridinesulfonamide?

The CAS number of 4-Amino-3-pyridinesulfonamide is 75903-62-7.

What are the molecular formula and molecular weight of 4-Amino-3-pyridinesulfonamide?

4-Amino-3-pyridinesulfonamide has molecular formula C5H7N3O2S and molecular weight 173.193 g/mol.

What are the upstream and downstream products of 4-Amino-3-pyridinesulfonamide?

For 4-Amino-3-pyridinesulfonamide, Upstream Products: 4-Chloro-3-pyridinesulfonamide, 4-chloropyridine-3-sulfonyl chloride, 4-Hydroxypyridine-3-sulfonic 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. "4-Amino-3-pyridinesulfonamide (CAS 75903-62-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-934603-6 (accessed 2026-11-09).

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