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trans-2-Undecenoic acid

Also known as: (2E)-2-Undecenoic acid, (E)-2-Undecenoic acid, (E)-undec-2-enoic acid, 2-UNDECENOIC ACID, Undec-2-enoic acid, trans-2-Undecylenic acid, trans-undec-2-enoic acid, MFCD00040909, RARECHEM AL BK 0167

trans-2-Undecenoic acid (CAS 15790-94-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H20O2 and a molecular weight of 184.27500 g/mol. Key properties include a melting point of 8.5 °C(estimate), a boiling point of 295.4ºC at 760mmHg, a density of 0.929g/cm3 and a flash point of 201.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
15790-94-0
Jingsj CID
J-27685-7
Molecular Formula
C11H20O2
Molecular Weight
184.27500 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point8.5 °C(estimate)
Boiling Point295.4ºC at 760mmHg
Density0.929g/cm3
Flash Point201.1ºC
Exact Mass184.14600
PSA37.30000
LogP3.37780
Vapor Pressure0.000372mmHg at 25°C
Refractive Index1.4625

Activity & Biological Data

Additional Information[1]. Sonneck M, et al. Crystal structure of (E)-undec-2-enoic acid. Acta Crystallogr E Crystallogr Commun. 2015 May 28;71(Pt 6):o426-7.

Customs & Trade Information

HS Code2916190090
Summary2916190090 unsaturated acyclic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:6.5%。general tariff:30.0%

Frequently Asked Questions

What is the CAS number of trans-2-Undecenoic acid?

The CAS number of trans-2-Undecenoic acid is 15790-94-0.

What are the molecular formula and molecular weight of trans-2-Undecenoic acid?

trans-2-Undecenoic acid has molecular formula C11H20O2 and molecular weight 184.27500 g/mol.

What are the upstream and downstream products of trans-2-Undecenoic acid?

For trans-2-Undecenoic acid, Upstream Products: dec-1-yne, Nonanal, Malonic acid; Downstream Products: Undecanal, Undecanoic acid.

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

Last updated:

How to cite: Jingsj. "trans-2-Undecenoic acid (CAS 15790-94-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27685-7 (accessed 2026-11-09).

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