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Ethyl 3-(4-chlorophenyl)-2-propynoate

Also known as: Ethyl 3-(4-chlorophenyl)propiolate, Ethyl 4-chlorophenylpropiolate, Ethyl 4-chlorophenylpropynoate, 3-(4-Chlorophenyl)-2-propynoic acid ethyl ester, (4-Chlorophenyl)-2-propynoic acid ethyl ester, 2-Propynoic acid, 3-(4-chlorophenyl)-, ethyl ester, ethyl 3-(4-chlorophenyl)prop-2-ynoate, 3-(4-chlorophenyl)propiolate, (4-Chloro-phenyl)-propiolsaeure-aethylester

Ethyl 3-(4-chlorophenyl)-2-propynoate (CAS 20026-96-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H9ClO2 and a molecular weight of 208.641 g/mol. Key properties include a boiling point of 293.5±23.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 120.8±21.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
20026-96-4
Jingsj CID
J-1085274-1
Molecular Formula
C11H9ClO2
Molecular Weight
208.641 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point293.5±23.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point120.8±21.6 °C
Exact Mass208.029114
PSA26.30000
LogP4.31
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.555

Customs & Trade Information

HS Code2916399090
Summary2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Ethyl 3-(4-chlorophenyl)-2-propynoate?

The CAS number of Ethyl 3-(4-chlorophenyl)-2-propynoate is 20026-96-4.

What are the molecular formula and molecular weight of Ethyl 3-(4-chlorophenyl)-2-propynoate?

Ethyl 3-(4-chlorophenyl)-2-propynoate has molecular formula C11H9ClO2 and molecular weight 208.641 g/mol.

What are the upstream and downstream products of Ethyl 3-(4-chlorophenyl)-2-propynoate?

For Ethyl 3-(4-chlorophenyl)-2-propynoate, Upstream Products: 1-Chloro-4-iodobenzene, Ethyl propiolate, Ethyl 3-(4-chlorophenyl)-3-oxopropanoate; Downstream Products: 3-(4-Chlorophenyl)-2-propynoic acid, methyl (3R,4S)-1-benzyl-4-(4-chlorophenyl)pyrrolidine-3-carboxylate.

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 3-(4-chlorophenyl)-2-propynoate (CAS 20026-96-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1085274-1 (accessed 2026-11-09).

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