3-chloro-6-fluoro-1-benzothiophene-2-carbonyl chloride

Also known as: 3-chloro-6-fluoro-2-benzothiophenecarbonyl chloride, 3-chloro-6-fluorobenzo[b]thiophene-2-carbonyl chloride, benzo[b]thiophene-2-carbonyl chloride, 3-chloro-6-fluoro-, 3-chloro-2-(chlorocarbonyl)-6-fluoro-1-benzothiophene, 3-chloro-6-fluorobenzthien-2-carboxylic acid chloride, 3-chloro-6-fluorobenzothiophene-2-carbonyl chloride

3-chloro-6-fluoro-1-benzothiophene-2-carbonyl chloride (CAS 34576-83-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H3Cl2FOS and a molecular weight of 249.08900 g/mol. Key properties include a melting point of 108-112ºC(lit.), a boiling point of 345.7ºC at 760mmHg, a density of 1.6g/cm3 and a flash point of 162.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 34576-83-5
Jingsj CID: J-43604-4
Molecular Formula: C₉H₃Cl₂FOS
Molecular Weight: 249.08900 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	108-112ºC(lit.)
Boiling Point	345.7ºC at 760mmHg
Density	1.6g/cm3
Flash Point	162.9ºC
Exact Mass	247.92700
PSA	45.31000
LogP	4.07280
Refractive Index	1.662

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. 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 3-chloro-6-fluoro-1-benzothiophene-2-carbonyl chloride?

The CAS number of 3-chloro-6-fluoro-1-benzothiophene-2-carbonyl chloride is 34576-83-5.

What are the molecular formula and molecular weight of 3-chloro-6-fluoro-1-benzothiophene-2-carbonyl chloride?

3-chloro-6-fluoro-1-benzothiophene-2-carbonyl chloride has molecular formula C9H3Cl2FOS and molecular weight 249.08900 g/mol.

What are the upstream and downstream products of 3-chloro-6-fluoro-1-benzothiophene-2-carbonyl chloride?

For 3-chloro-6-fluoro-1-benzothiophene-2-carbonyl chloride, Upstream Products: 4-Fluorocinnamic acid.

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. "3-chloro-6-fluoro-1-benzothiophene-2-carbonyl chloride (CAS 34576-83-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-43604-4 (accessed 2026-11-09).

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