(2E)-2,4-Pentadienoic acid

(E)-2,4-戊二烯酸

Also known as: trans-2,4-Pentadienoic acid, (2E)-2,4-Pentadienoic acid, trans-1-Carboxybutadiene, (E)-1,3-Butadiene-1-carboxylic acid, 1-carboxy butadiene, 2,4-Pentadienoic acid, (2E)-

CAS No.
21651-12-7
Jingsj CID
J-1355861-9
Molecular Formula
C5H6O2
Chinese Name
(E)-2,4-戊二烯酸
Molecular Weight
98.09990 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point72ºC
Boiling Point215ºC
Density1.039
Flash Point121ºC

Frequently Asked Questions

What is the CAS number of (2E)-2,4-Pentadienoic acid?

21651-12-7

What are the molecular formula and molecular weight of (2E)-2,4-Pentadienoic acid?

C5H6O2, molecular weight 98.09990 g/mol

Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026