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2,3,5-Trichloro-4-hydroxypyridine

Also known as: 2,3,5-Trichloropyridin-4-ol, 2,3,5-Trichloro-4-pyridinol, 4-Hydroxy-2,3,5-trichloropyridine, Pyriclor, Daxtron, 2,3,5-trichloro-1H-pyridin-4-one, 2,3,5-trichloro-4-pyridone, Caswell No. 882G

2,3,5-Trichloro-4-hydroxypyridine (CAS 1970-40-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H2Cl3NO and a molecular weight of 198.43400 g/mol. Key properties include a melting point of 216°C, a boiling point of 241.5ºC at 760 mmHg, a density of 1.67 g/cm3 and a flash point of 99.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1970-40-7
Jingsj CID
J-49065-3
Molecular Formula
C5H2Cl3NO
Molecular Weight
198.43400 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point216°C
Boiling Point241.5ºC at 760 mmHg
Density1.67 g/cm3
Flash Point99.8ºC
Exact Mass196.92000
PSA33.12000
LogP2.74740
Vapor Pressure0.0358mmHg at 25°C
Refractive Index1.598

Customs & Trade Information

HS Code2933399090
Summary2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 2,3,5-Trichloro-4-hydroxypyridine?

The CAS number of 2,3,5-Trichloro-4-hydroxypyridine is 1970-40-7.

What are the molecular formula and molecular weight of 2,3,5-Trichloro-4-hydroxypyridine?

2,3,5-Trichloro-4-hydroxypyridine has molecular formula C5H2Cl3NO and molecular weight 198.43400 g/mol.

What are the upstream and downstream products of 2,3,5-Trichloro-4-hydroxypyridine?

For 2,3,5-Trichloro-4-hydroxypyridine, Upstream Products: 2,3,4,5-tetrachloropyridine, 2,3,5-Trichloropyridin-4-amine.

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

Last updated:

How to cite: Jingsj. "2,3,5-Trichloro-4-hydroxypyridine (CAS 1970-40-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49065-3 (accessed 2026-11-09).

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