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2,3,4,5-Tetrachlorobenzoyl chloride

Also known as: 2,3,4,5-Tetrachlorobenzoic acid chloride, Benzoyl chloride, 2,3,4,5-tetrachloro-, 2,3,4,5-Tetrachlorobenzoyl chloride 99%, 2,3,4,5-tetrachlorobenzoylchloride, EINECS 406-760-3, MFCD08460213, SKL1265

2,3,4,5-Tetrachlorobenzoyl chloride (CAS 42221-52-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7HCl5O and a molecular weight of 278.34700 g/mol. Key properties include a melting point of 40 °C, a boiling point of 308.1ºC at 760 mmHg and a density of 1.7 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
42221-52-3
Jingsj CID
J-12052-5
Molecular Formula
C7HCl5O
Molecular Weight
278.34700 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point40 °C
Boiling Point308.1ºC at 760 mmHg
Density1.7 g/cm3
Exact Mass275.84700
PSA17.07000
LogP4.67920
Refractive Index1.601

Customs & Trade Information

HS Code2916399090
Summary2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives 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 2,3,4,5-Tetrachlorobenzoyl chloride?

The CAS number of 2,3,4,5-Tetrachlorobenzoyl chloride is 42221-52-3.

What are the molecular formula and molecular weight of 2,3,4,5-Tetrachlorobenzoyl chloride?

2,3,4,5-Tetrachlorobenzoyl chloride has molecular formula C7HCl5O and molecular weight 278.34700 g/mol.

What are the upstream and downstream products of 2,3,4,5-Tetrachlorobenzoyl chloride?

For 2,3,4,5-Tetrachlorobenzoyl chloride, Upstream Products: 2,3,4,5-Tetrachlorobenzoic acid, Tetrachlorophthalic anhydride; Downstream Products: 2,3,4,5-Tetrachlorobenzonitrile, 3,5-Dichloro-2,4-difluorobenzoyl fluoride.

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

Last updated:

How to cite: Jingsj. "2,3,4,5-Tetrachlorobenzoyl chloride (CAS 42221-52-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12052-5 (accessed 2026-11-09).

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