4,5,6,7-tetrahydrothieno[3,2-c]pyridine-2-carboxylic acid

4,5,6,7-四氢噻吩[3,2-c]吡啶-2-羧酸

Also known as: Thieno[3,2-c]pyridine-2-carboxylic acid, 4,5,6,7-tetrahydro-

4,5,6,7-tetrahydrothieno[3,2-c]pyridine-2-carboxylic acid (CAS 116118-98-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H9NO2S and a molecular weight of 183.228 g/mol. It is also known as Thieno[3,2-c]pyridine-2-carboxylic acid, 4,5,6,7-tetrahydro-. Key properties include a boiling point of 401.6±45.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 196.7±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
116118-98-0
Jingsj CID
J-1511450-7
Molecular Formula
C8H9NO2S
Chinese Name
4,5,6,7-四氢噻吩[3,2-c]吡啶-2-羧酸
Molecular Weight
183.228 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point401.6±45.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point196.7±28.7 °C
Exact Mass183.035400
PSA77.57000
LogP0.76
Vapor Pressure0.0±1.0 mmHg at 25°C
Refractive Index1.619

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 4,5,6,7-tetrahydrothieno[3,2-c]pyridine-2-carboxylic acid?

The CAS number of 4,5,6,7-tetrahydrothieno[3,2-c]pyridine-2-carboxylic acid is 116118-98-0.

What are the molecular formula and molecular weight of 4,5,6,7-tetrahydrothieno[3,2-c]pyridine-2-carboxylic acid?

4,5,6,7-tetrahydrothieno[3,2-c]pyridine-2-carboxylic acid has molecular formula C8H9NO2S and molecular weight 183.228 g/mol.

What are the upstream and downstream products of 4,5,6,7-tetrahydrothieno[3,2-c]pyridine-2-carboxylic acid?

For 4,5,6,7-tetrahydrothieno[3,2-c]pyridine-2-carboxylic acid, Upstream Products: Diethyl 6,7-dihydrothieno[3,2-c]pyridine-2,5(4H)-dicarboxylate; Downstream Products: 4,5,6,7-Tetrahydrothieno[3,2-c]pyridine, 5-(tert-Butoxycarbonyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridine-2-carboxylic acid.

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

Last updated:

How to cite: Jingsj. "4,5,6,7-tetrahydrothieno[3,2-c]pyridine-2-carboxylic acid (CAS 116118-98-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1511450-7 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.