4-Hydroxy-2,5,6-trichloroisophthalonitrile

Also known as: Hydroxy Chlorothalonil, Chlorothalonil-4-hydroxy, 4-hydroxychlorothalonil, 1,3-Dicyano-4-hydroxy-2,5,6-trichlorobenzene, 2,4,5-Trichloro-6-hydroxy-isophthalonitrile, 2,4,5-Trichloro-6-hydroxy-1,3-benzenedicarbonitrile, 2,4,5-Trichloro-6-hydroxybenzene-1,3-dicarbonitrile, 2,5,6-Trichloro-4-hydroxy-1,3-benzenedicarbonitrile, 4-hydroxy-2,5,6-trichloro-1,3-benzenedicarbonitrile, 4-hydroxy-2,5,6-trichloro-3-benzenedicarbonitrile, 4-hydroxy-2,5,6-trichloroisophthalonitrile, TPN-OH, SDS 3701, R182281

4-Hydroxy-2,5,6-trichloroisophthalonitrile (CAS 28343-61-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C8HCl3N2O and a molecular weight of 247.46500 g/mol. Key properties include a boiling point of 355ºC at 760mmHg, a density of 1.75g/cm3 and a flash point of 168.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 28343-61-5
Jingsj CID: J-1326441-0
Molecular Formula: C₈HCl₃N₂O
Molecular Weight: 247.46500 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point	355ºC at 760mmHg
Density	1.75g/cm3
Flash Point	168.5ºC
Exact Mass	245.91500
PSA	67.81000
LogP	3.09576
Vapor Pressure	1.57E-05mmHg at 25°C
Refractive Index	1.659

Customs & Trade Information

HS Code	2926909090
Summary	HS:2926909090 other nitrile-function compounds VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4-Hydroxy-2,5,6-trichloroisophthalonitrile?

The CAS number of 4-Hydroxy-2,5,6-trichloroisophthalonitrile is 28343-61-5.

What are the molecular formula and molecular weight of 4-Hydroxy-2,5,6-trichloroisophthalonitrile?

4-Hydroxy-2,5,6-trichloroisophthalonitrile has molecular formula C8HCl3N2O and molecular weight 247.46500 g/mol.

What are the upstream and downstream products of 4-Hydroxy-2,5,6-trichloroisophthalonitrile?

For 4-Hydroxy-2,5,6-trichloroisophthalonitrile, Upstream Products: Chlorothalonil.

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-Hydroxy-2,5,6-trichloroisophthalonitrile (CAS 28343-61-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1326441-0 (accessed 2026-11-09).

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