1-chloronaphtho[2,1-b]thiophene-2-carboxylic acid

Also known as: 1-chloro-2-benzo[e]benzothiophenecarboxylic acid, 1-chlorobenzo[e][1]benzothiole-2-carboxylic acid, 1-chlorobenzo[e]benzothiophene-2-carboxylic acid, 3-chloro-2-carboxynaphtho<2,1-b>thiophene, Naphtho[2,1-b]thiophene-2-carboxylic acid, 1-chloro-, 1-Chlorobenzo[E][1]Benzothiole-2-Carboxylic Acid

1-chloronaphtho[2,1-b]thiophene-2-carboxylic acid (CAS 85589-69-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C13H7ClO2S and a molecular weight of 262.71100 g/mol. Key properties include a melting point of 246-248ºC, a boiling point of 491.4ºC at 760 mmHg, a density of 1.53g/cm3 and a flash point of 251ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 85589-69-1
Jingsj CID: J-1472417-5
Molecular Formula: C₁₃H₇ClO₂S
Molecular Weight: 262.71100 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	246-248ºC
Boiling Point	491.4ºC at 760 mmHg
Density	1.53g/cm3
Flash Point	251ºC
Exact Mass	261.98600
PSA	65.54000
LogP	4.40610
Refractive Index	1.782

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 1-chloronaphtho[2,1-b]thiophene-2-carboxylic acid?

The CAS number of 1-chloronaphtho[2,1-b]thiophene-2-carboxylic acid is 85589-69-1.

What are the molecular formula and molecular weight of 1-chloronaphtho[2,1-b]thiophene-2-carboxylic acid?

1-chloronaphtho[2,1-b]thiophene-2-carboxylic acid has molecular formula C13H7ClO2S and molecular weight 262.71100 g/mol.

What are the upstream and downstream products of 1-chloronaphtho[2,1-b]thiophene-2-carboxylic acid?

For 1-chloronaphtho[2,1-b]thiophene-2-carboxylic acid, Upstream Products: 1-chloronaphtho[2,1-b]thiophene-2-carbonyl chloride.

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. "1-chloronaphtho[2,1-b]thiophene-2-carboxylic acid (CAS 85589-69-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1472417-5 (accessed 2026-11-09).

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