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5-(2-thienyl)pentanoic acid

Also known as: 5-(2-Thienyl)valeric acid, 5-(Thiophen-2-yl)pentanoic acid, 2-Thiophenepentanoic acid, 5-(thien-2-yl)pentanoic acid, 5-(thiophene-2-yl)pentanoic acid, 5-thiophen-2-ylpentanoic acid, MFCD00151849

5-(2-thienyl)pentanoic acid (CAS 21010-06-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H12O2S and a molecular weight of 184.25500 g/mol. Key properties include a melting point of 41-44°C, a boiling point of 336.8ºC at 760 mmHg, a density of 1.182g/cm3 and a flash point of 157.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21010-06-0
Jingsj CID
J-35505-5
Molecular Formula
C9H12O2S
Molecular Weight
184.25500 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point41-44°C
Boiling Point336.8ºC at 760 mmHg
Density1.182g/cm3
Flash Point157.5ºC
Exact Mass184.05600
PSA65.54000
LogP2.54550
Vapor Pressure4.29E-05mmHg at 25°C
Refractive Index1.549

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-thienyl)pentanoic acid?

The CAS number of 5-(2-thienyl)pentanoic acid is 21010-06-0.

What are the molecular formula and molecular weight of 5-(2-thienyl)pentanoic acid?

5-(2-thienyl)pentanoic acid has molecular formula C9H12O2S and molecular weight 184.25500 g/mol.

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-thienyl)pentanoic acid (CAS 21010-06-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35505-5 (accessed 2026-11-09).

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