4,4'-(Ethyne-1,2-diyl)dibenzoic acid

4,4'-(乙炔-1,2-二基)二苯甲酸

Also known as: 4,4'-(1,2-Ethynediyl)dibenzoic acid, 4,4'-(ethyne-1,2-diyl)dibenzoic acid, 4,4'-(1,2-acetylenediyl)dibenzoic acid, 4-[2-(4-carboxyphenyl)ethynyl]benzoic acid, Benzoic acid, 4,4'-(1,2-ethynediyl)bis-

4,4'-(Ethyne-1,2-diyl)dibenzoic acid (CAS 16819-43-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C16H10O4 and a molecular weight of 266.24800 g/mol. It is also known as 4,4'-(1,2-Ethynediyl)dibenzoic acid, 4,4'-(ethyne-1,2-diyl)dibenzoic acid and 4,4'-(1,2-acetylenediyl)dibenzoic acid. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 16819-43-5
Jingsj CID: J-1507888-7
Molecular Formula: C₁₆H₁₀O₄
Chinese Name: 4,4'-(乙炔-1,2-二基)二苯甲酸
Molecular Weight: 266.24800 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of 4,4'-(Ethyne-1,2-diyl)dibenzoic acid?

The CAS number of 4,4'-(Ethyne-1,2-diyl)dibenzoic acid is 16819-43-5.

What are the molecular formula and molecular weight of 4,4'-(Ethyne-1,2-diyl)dibenzoic acid?

4,4'-(Ethyne-1,2-diyl)dibenzoic acid has molecular formula C16H10O4 and molecular weight 266.24800 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4,4'-(Ethyne-1,2-diyl)dibenzoic acid (CAS 16819-43-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1507888-7 (accessed 2026-10-25).

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