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ethyl thieno[2,3-b]pyridine-2-carboxylate

Also known as: thieno[2,3-b]pyridine-2-carboxylic acid ethyl ester, 2-(ethoxycarbonyl)thieno[2,3-b]pyridine, 2-(ethoxycarbonyl)-7-aza-1-benzothiophene, 2-(ethoxycarbonyl)-7-azabenzo[b]thiophene

ethyl thieno[2,3-b]pyridine-2-carboxylate (CAS 59944-78-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H9NO2S and a molecular weight of 207.249 g/mol. Key properties include a melting point of 59ºC, a boiling point of 329.4±22.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 153.0±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
59944-78-4
Jingsj CID
J-880199-8
Molecular Formula
C10H9NO2S
Molecular Weight
207.249 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point59ºC
Boiling Point329.4±22.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point153.0±22.3 °C
Exact Mass207.035400
PSA67.43000
LogP3.45
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.627

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 ethyl thieno[2,3-b]pyridine-2-carboxylate?

The CAS number of ethyl thieno[2,3-b]pyridine-2-carboxylate is 59944-78-4.

What are the molecular formula and molecular weight of ethyl thieno[2,3-b]pyridine-2-carboxylate?

ethyl thieno[2,3-b]pyridine-2-carboxylate has molecular formula C10H9NO2S and molecular weight 207.249 g/mol.

What are the upstream and downstream products of ethyl thieno[2,3-b]pyridine-2-carboxylate?

For ethyl thieno[2,3-b]pyridine-2-carboxylate, Upstream Products: 2-Chloro-3-pyridinecarboxaldehyde, Ethyl thioglycolate, Ethyl bromoacetate; Downstream Products: thieno[2,3-b]pyridine-2-carboxylic acid, Thieno[2,3-b]pyridine.

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

Last updated:

How to cite: Jingsj. "ethyl thieno[2,3-b]pyridine-2-carboxylate (CAS 59944-78-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-880199-8 (accessed 2026-11-09).

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