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5-Chloro-1-benzothiophene

Also known as: 5-Chlorobenzo[b]thiophene, 5-Chlorobenzothiophene, 5-Chlorothionaphthene, 5-chloro-1-benzothiophene, Benzo[b]thiophene, 5-chloro-

5-Chloro-1-benzothiophene (CAS 20532-33-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H5ClS and a molecular weight of 168.643 g/mol. Key properties include a boiling point of 261.5±13.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 147.6±6.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
20532-33-6
Jingsj CID
J-45824-2
Molecular Formula
C8H5ClS
Molecular Weight
168.643 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point261.5±13.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point147.6±6.5 °C
Exact Mass167.980042
PSA28.24000
LogP4.97
AppearanceSolid | Off-white
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.683
Storage Conditions2~8℃
Additional PropertySlightly soluble in water.

Customs & Trade Information

HS Code2934999090
Summary2934999090. 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 5-Chloro-1-benzothiophene?

The CAS number of 5-Chloro-1-benzothiophene is 20532-33-6.

What are the molecular formula and molecular weight of 5-Chloro-1-benzothiophene?

5-Chloro-1-benzothiophene has molecular formula C8H5ClS and molecular weight 168.643 g/mol.

What are the upstream and downstream products of 5-Chloro-1-benzothiophene?

For 5-Chloro-1-benzothiophene, Upstream Products: 5-Chlorobenzo[b]thiophene-2-carboxylic acid, 4-Chlorothiophenol, Diethyl disulfide; Downstream Products: 3-Bromo-5-chlorobenzo[b]thiophene, 5-Methoxy-1-benzothiophene, 1-Benzothiophen-5-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. "5-Chloro-1-benzothiophene (CAS 20532-33-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45824-2 (accessed 2026-11-09).

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