(1E,4E)-1,5-Di-p-tolylpenta-1,4-dien-3-one

(1E,4E)-1,5-二对甲苯-1,4-戊二烯-3-酮

Also known as: 1,5-bis(4-methylphenyl)penta-1,4-dien-3-one, 1,4-Pentadien-3-one, 1,5-bis(4-methylphenyl)-, Nsc97301, Bis-(4-methylstyryl) ketone, (1E,4E)-1,5-Bis(p-tolyl)penta-1,4-dien-3-one

(1E,4E)-1,5-Di-p-tolylpenta-1,4-dien-3-one (CAS 621-98-7) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C19H18O and a molecular weight of 262.34600 g/mol. It is also known as 1,5-bis(4-methylphenyl)penta-1,4-dien-3-one, 1,4-Pentadien-3-one, 1,5-bis(4-methylphenyl)- and Nsc97301. Key properties include a boiling point of 430.4ºC at 760 mmHg, a density of 1.068g/cm3 and a flash point of 188.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
621-98-7
Jingsj CID
J-913781-9
Molecular Formula
C19H18O
Chinese Name
(1E,4E)-1,5-二对甲苯-1,4-戊二烯-3-酮
Molecular Weight
262.34600 g/mol
Category
Solvents
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point430.4ºC at 760 mmHg
Density1.068g/cm3
Flash Point188.6ºC

Frequently Asked Questions

What is the CAS number of (1E,4E)-1,5-Di-p-tolylpenta-1,4-dien-3-one?

The CAS number of (1E,4E)-1,5-Di-p-tolylpenta-1,4-dien-3-one is 621-98-7.

What are the molecular formula and molecular weight of (1E,4E)-1,5-Di-p-tolylpenta-1,4-dien-3-one?

(1E,4E)-1,5-Di-p-tolylpenta-1,4-dien-3-one has molecular formula C19H18O and molecular weight 262.34600 g/mol.

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

Last updated:

How to cite: Jingsj. "(1E,4E)-1,5-Di-p-tolylpenta-1,4-dien-3-one (CAS 621-98-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-913781-9 (accessed 2026-10-24).

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