5-Amino-2-pyridinol 1-oxide

2-羟基-5-氨基吡啶 N-氧化物

Also known as: 2-Hydroxy-5-aminopyridine N-oxide, 5-amino-1-hydroxypyridin-2-one, 5-amino-2-hydroxypyridine 1-oxide, 2-Pyridinol, 5-amino-, 1-oxide, 3-amino-6-hydroxy pyridine N-oxide, Fampridine Impurity 159

5-Amino-2-pyridinol 1-oxide (CAS 900139-09-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H6N2O2 and a molecular weight of 126.11300 g/mol. It is also known as 2-Hydroxy-5-aminopyridine N-oxide, 5-amino-1-hydroxypyridin-2-one and 5-amino-2-hydroxypyridine 1-oxide. Key properties include a boiling point of 310.7ºC at 760 mmHg, a density of 1.45 and a flash point of 141.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
900139-09-5
Jingsj CID
J-1113368-3
Molecular Formula
C5H6N2O2
Chinese Name
2-羟基-5-氨基吡啶 N-氧化物
Molecular Weight
126.11300 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point310.7ºC at 760 mmHg
Density1.45
Flash Point141.7ºC

Frequently Asked Questions

What is the CAS number of 5-Amino-2-pyridinol 1-oxide?

The CAS number of 5-Amino-2-pyridinol 1-oxide is 900139-09-5.

What are the molecular formula and molecular weight of 5-Amino-2-pyridinol 1-oxide?

5-Amino-2-pyridinol 1-oxide has molecular formula C5H6N2O2 and molecular weight 126.11300 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-2-pyridinol 1-oxide (CAS 900139-09-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1113368-3 (accessed 2026-10-24).

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