Ethyl 4-(prop-2-ynyloxy)benzoate

4-丙-2-炔氧基苯甲酸乙酯

Also known as: ethyl 4-(prop-2-yn-1-yloxy)benzoate, ethyl 4-(2-propyn-1-yloxy)benzoate, 4-(2-propynyloxy)benzoic acid ethyl ester, 3-(4-ethoxycarbonylphenoxy)prop-1-yne, HMS555P11

Ethyl 4-(prop-2-ynyloxy)benzoate (CAS 175203-55-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H12O3 and a molecular weight of 204.22200 g/mol. It is also known as ethyl 4-(prop-2-yn-1-yloxy)benzoate, ethyl 4-(2-propyn-1-yloxy)benzoate and 4-(2-propynyloxy)benzoic acid ethyl ester. Key properties include a melting point of 42-44 °C, a boiling point of 314.1ºC at 760 mmHg, a density of 1.106g/cm3 and a flash point of 128.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
175203-55-1
Jingsj CID
J-1522189-8
Molecular Formula
C12H12O3
Chinese Name
4-丙-2-炔氧基苯甲酸乙酯
Molecular Weight
204.22200 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point42-44 °C
Boiling Point314.1ºC at 760 mmHg
Density1.106g/cm3
Flash Point128.5ºC

Frequently Asked Questions

What is the CAS number of Ethyl 4-(prop-2-ynyloxy)benzoate?

The CAS number of Ethyl 4-(prop-2-ynyloxy)benzoate is 175203-55-1.

What are the molecular formula and molecular weight of Ethyl 4-(prop-2-ynyloxy)benzoate?

Ethyl 4-(prop-2-ynyloxy)benzoate has molecular formula C12H12O3 and molecular weight 204.22200 g/mol.

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

Last updated:

How to cite: Jingsj. "Ethyl 4-(prop-2-ynyloxy)benzoate (CAS 175203-55-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1522189-8 (accessed 2026-10-24).

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