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2-Amino-5-chloropyridin-3-ol

Also known as: 2-Amino-3-hydroxy-5-chloropyridine, 2-Amino-5-chloro-3-hydroxypyridine, 2-Amino-5-chloro-3-pyridinol, 3-Pyridinol, 2-amino-5-chloro-, 2-amino-5-chloropyridin-3-ol, 2-amino-5-chloro-3-pyridinol, 2-azanyl-5-chloranyl-pyridin-3-ol

2-Amino-5-chloropyridin-3-ol (CAS 40966-87-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H5ClN2O and a molecular weight of 144.559 g/mol. Key properties include a melting point of 198-201ºC, a boiling point of 383.7±42.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 185.9±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
40966-87-8
Jingsj CID
J-1076021-1
Molecular Formula
C5H5ClN2O
Molecular Weight
144.559 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point198-201ºC
Boiling Point383.7±42.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point185.9±27.9 °C
Exact Mass144.009033
PSA59.14000
LogP2.16
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.664
Storage Conditions2-8°C

Frequently Asked Questions

What is the CAS number of 2-Amino-5-chloropyridin-3-ol?

The CAS number of 2-Amino-5-chloropyridin-3-ol is 40966-87-8.

What are the molecular formula and molecular weight of 2-Amino-5-chloropyridin-3-ol?

2-Amino-5-chloropyridin-3-ol has molecular formula C5H5ClN2O and molecular weight 144.559 g/mol.

What are the upstream and downstream products of 2-Amino-5-chloropyridin-3-ol?

For 2-Amino-5-chloropyridin-3-ol, Upstream Products: 2-Amino-3-hydroxypyridine, 2-Amino-3-bromo-5-chloropyridine, 2-Amino-3,5-dichloropyridine; Downstream Products: 6-Chlorooxazolo[4,5-b]pyridin-2(3H)-one.

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

Last updated:

How to cite: Jingsj. "2-Amino-5-chloropyridin-3-ol (CAS 40966-87-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1076021-1 (accessed 2026-11-09).

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