1,3,5-Pentanetrione, 1-(4-methoxyphenyl)-5-phenyl-

1-(4-甲氧基苯基)-5-苯基-1,3,5-戊三酮

Also known as: 1-(4-Methoxyphenyl)-5-phenyl-1,3,5-pentanetrione, 1-(4-Methoxyphenyl)-5-phenylpentane-1,3,5-trione, 1-(4-Methoxy-phenyl)-5-phenyl-penten-1,3,5-trion, 1-(p-Methoxyphenyl)-5-phenyl-pentantrion-(1,3,5), 1-Phenyl-5-(4-methoxy-phenyl)-1,3,5-pentantrion, 5-Phenyl-1-(4-methoxy-phenyl)-pentantrion-(1,3,5), NSC 40938, NSC-40938

1,3,5-Pentanetrione, 1-(4-methoxyphenyl)-5-phenyl- (CAS 1678-17-7) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C18H16O4 and a molecular weight of 296.31700 g/mol. It is also known as 1-(4-Methoxyphenyl)-5-phenyl-1,3,5-pentanetrione, 1-(4-Methoxyphenyl)-5-phenylpentane-1,3,5-trione and 1-(4-Methoxy-phenyl)-5-phenyl-penten-1,3,5-trion. Key properties include a boiling point of 475.1ºC at 760mmHg, a density of 1.18g/cm3 and a flash point of 210.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1678-17-7
Jingsj CID
J-1593834-3
Molecular Formula
C18H16O4
Chinese Name
1-(4-甲氧基苯基)-5-苯基-1,3,5-戊三酮
Molecular Weight
296.31700 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point475.1ºC at 760mmHg
Density1.18g/cm3
Flash Point210.9ºC

Frequently Asked Questions

What is the CAS number of 1,3,5-Pentanetrione, 1-(4-methoxyphenyl)-5-phenyl-?

The CAS number of 1,3,5-Pentanetrione, 1-(4-methoxyphenyl)-5-phenyl- is 1678-17-7.

What are the molecular formula and molecular weight of 1,3,5-Pentanetrione, 1-(4-methoxyphenyl)-5-phenyl-?

1,3,5-Pentanetrione, 1-(4-methoxyphenyl)-5-phenyl- has molecular formula C18H16O4 and molecular weight 296.31700 g/mol.

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

Last updated:

How to cite: Jingsj. "1,3,5-Pentanetrione, 1-(4-methoxyphenyl)-5-phenyl- (CAS 1678-17-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1593834-3 (accessed 2026-10-24).

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