1,5-diphenyl-1,3,5-pentanetrione

Also known as: 1,3-dibenzoylacetone, 1,5-diphenylpentane-1,3,5-trione, 1,3,5-pentanetrione,1,5-diphenyl-, NSC 154656, NSC 631644, 2-propanone,1,3-dibenzoyl-, acetone, s-dibenzoyl-

1,5-diphenyl-1,3,5-pentanetrione (CAS 1467-40-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C17H14O3 and a molecular weight of 266.29100 g/mol. Key properties include a melting point of 107-109ºC, a boiling point of 422.7ºC at 760mmHg, a density of 1.172g/cm3 and a flash point of 182.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1467-40-9
Jingsj CID: J-1515197-0
Molecular Formula: C₁₇H₁₄O₃
Molecular Weight: 266.29100 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	107-109ºC
Boiling Point	422.7ºC at 760mmHg
Density	1.172g/cm3
Flash Point	182.6ºC
Exact Mass	266.09400
PSA	51.21000
LogP	3.10150
Vapor Pressure	9.37E-08mmHg at 25°C
Refractive Index	1.574

Customs & Trade Information

HS Code	2914399090
Summary	2914399090. other aromatic ketones without other oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 1,5-diphenyl-1,3,5-pentanetrione?

The CAS number of 1,5-diphenyl-1,3,5-pentanetrione is 1467-40-9.

What are the molecular formula and molecular weight of 1,5-diphenyl-1,3,5-pentanetrione?

1,5-diphenyl-1,3,5-pentanetrione has molecular formula C17H14O3 and molecular weight 266.29100 g/mol.

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. "1,5-diphenyl-1,3,5-pentanetrione (CAS 1467-40-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1515197-0 (accessed 2026-11-09).

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