4-Chloro-2-iodophenol

Also known as: 2-Iodo-4-chlorophenol, Phenol, 4-chloro-2-iodo-, 4-Chloro-2-Iodophenol

4-Chloro-2-iodophenol (CAS 71643-66-8) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C6H4ClIO and a molecular weight of 254.453 g/mol. Key properties include a boiling point of 225.1±20.0 °C at 760 mmHg, a density of 2.1±0.1 g/cm3 and a flash point of 89.9±21.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 71643-66-8
Jingsj CID: J-1392278-6
Molecular Formula: C₆H₄ClIO
Molecular Weight: 254.453 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	225.1±20.0 °C at 760 mmHg
Density	2.1±0.1 g/cm3
Flash Point	89.9±21.8 °C
Exact Mass	253.899521
PSA	20.23000
LogP	3.14
Vapor Pressure	0.1±0.5 mmHg at 25°C
Refractive Index	1.678

Customs & Trade Information

HS Code	2908199090
Summary	HS: 2908199090. derivatives of polyphenols or phenol-alcohols containing only halogen substituents and their salts. VAT:17.0%. tax rebate rate:9.0%. supervision conditions:None. MFN tariff:5.5%. general tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4-Chloro-2-iodophenol?

The CAS number of 4-Chloro-2-iodophenol is 71643-66-8.

What are the molecular formula and molecular weight of 4-Chloro-2-iodophenol?

4-Chloro-2-iodophenol has molecular formula C6H4ClIO and molecular weight 254.453 g/mol.

What are the upstream and downstream products of 4-Chloro-2-iodophenol?

For 4-Chloro-2-iodophenol, Upstream Products: 2-Amino-4-chlorophenol, 4-Chloro-2-iodoanisole, 4-Chlorophenol; Downstream Products: 4-Chloro-2-iodoanisole, (2-(benzyloxy)-5-chlorophenyl)boronic acid, 6-CHLORO-2H-1,4-BENZOXAZIN-3(4H)-ONE.

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-Chloro-2-iodophenol (CAS 71643-66-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1392278-6 (accessed 2026-11-09).

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