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5-[2-cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl]-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2(3H)-one

Also known as: Prasugrel Impurity 16, Prasugrel Thiolactone Tautomer, 5-(α-cyclopropylcarbonyl-2-fluorobenzyl)-2-oxo-4,5,6,7-tetrahydrothieno[3,2-c]pyridine, FC1325, OXTP Tautomer, X4836, P701165

5-[2-cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl]-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2(3H)-one (CAS 951380-42-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C18H18FNO2S and a molecular weight of 331.404 g/mol. Key properties include a boiling point of 462.5±45.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 233.5±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
951380-42-0
Jingsj CID
J-989168-3
Molecular Formula
C18H18FNO2S
Molecular Weight
331.404 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point462.5±45.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point233.5±28.7 °C
Exact Mass331.104218
PSA62.68000
LogP2.38
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.641

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-[2-cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl]-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2(3H)-one?

The CAS number of 5-[2-cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl]-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2(3H)-one is 951380-42-0.

What are the molecular formula and molecular weight of 5-[2-cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl]-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2(3H)-one?

5-[2-cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl]-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2(3H)-one has molecular formula C18H18FNO2S and molecular weight 331.404 g/mol.

What are the upstream and downstream products of 5-[2-cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl]-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2(3H)-one?

For 5-[2-cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl]-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2(3H)-one, Upstream Products: 2-Chloro-1-cyclopropyl-2-(2-fluorophenyl)ethanone, 4,5,6,7-Tetrahydrothieno[3,2-c]pyridin-2(3H)-one 4-methylbenzenesulfonate, 2-Bromo-2-(2-fluorophenyl)-1-cyclopropylethanone; Downstream Products: Prasugrel.

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-[2-cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl]-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2(3H)-one (CAS 951380-42-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-989168-3 (accessed 2026-11-09).

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