3-(Ethoxycarbonyl)-4,4-diphenylbut-3-enoic acid

Also known as: Butanedioic acid, 2-(diphenylmethylene)-, 1-ethyl ester, 1-ethyl 4-hydrogen 2-(diphenylmethylene)succinate, 3-(ethoxycarbonyl)-4,4-diphenylbut-3-enoic acid, Benzhydrylidene-succinic acid-1-ethyl ester, ethoxycarbonyldiphenylbutenoicacid, 3-ethoxycarbonyl-4,4-diphenylbut-3-enoic acid

3-(Ethoxycarbonyl)-4,4-diphenylbut-3-enoic acid (CAS 5438-22-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C19H18O4 and a molecular weight of 310.34400 g/mol. Key properties include a melting point of 128-130ºC, a boiling point of 459.7ºC at 760mmHg, a density of 1.189g/cm3 and a flash point of 162.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 5438-22-2
Jingsj CID: J-1476313-4
Molecular Formula: C₁₉H₁₈O₄
Molecular Weight: 310.34400 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	128-130ºC
Boiling Point	459.7ºC at 760mmHg
Density	1.189g/cm3
Flash Point	162.9ºC
Exact Mass	310.12100
PSA	63.60000
LogP	3.52630
Refractive Index	1.58

Customs & Trade Information

HS Code	2918990090
Summary	2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3-(Ethoxycarbonyl)-4,4-diphenylbut-3-enoic acid?

The CAS number of 3-(Ethoxycarbonyl)-4,4-diphenylbut-3-enoic acid is 5438-22-2.

What are the molecular formula and molecular weight of 3-(Ethoxycarbonyl)-4,4-diphenylbut-3-enoic acid?

3-(Ethoxycarbonyl)-4,4-diphenylbut-3-enoic acid has molecular formula C19H18O4 and molecular weight 310.34400 g/mol.

What are the upstream and downstream products of 3-(Ethoxycarbonyl)-4,4-diphenylbut-3-enoic acid?

For 3-(Ethoxycarbonyl)-4,4-diphenylbut-3-enoic acid, Upstream Products: Benzophenone, Diethyl succinate, Ethanol; Downstream Products: 4,4-Diphenyl-3-butenoic acid.

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

Last updated: 8/21/2026

How to cite: Jingsj. "3-(Ethoxycarbonyl)-4,4-diphenylbut-3-enoic acid (CAS 5438-22-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1476313-4 (accessed 2026-11-09).

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