1,3-Indandione

Also known as: 1,3-DIKETOHYDRINDENE, 1,3-DIOXOINDANE, 1,3-Dioxoindan, 1,3-HYDRINDENEDIONE, 1,3-INDANEDIONE, 1,3-Indanedione, 1,3-Indanedione for synthesis, 1,3-indandione, 1H-Indene-1,3(2H)-dione, 1H-indene-1,3(2H)-dione-4,5,6,7-d4, EINECS 210-109-7, MFCD00003779

1,3-Indandione (CAS 606-23-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H6O2 and a molecular weight of 146.143 g/mol. Key properties include a melting point of 129-132 °C(lit.), a boiling point of 302.5±22.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 113.0±19.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 606-23-5
Jingsj CID: J-1033195-2
Molecular Formula: C₉H₆O₂
Molecular Weight: 146.143 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	129-132 °C(lit.)
Boiling Point	302.5±22.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	113.0±19.3 °C
Exact Mass	146.036774
PSA	34.14000
LogP	1.14
Vapor Pressure	0.0±0.6 mmHg at 25°C
Refractive Index	1.610

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 1,3-Indandione?

The CAS number of 1,3-Indandione is 606-23-5.

What are the molecular formula and molecular weight of 1,3-Indandione?

1,3-Indandione has molecular formula C9H6O2 and molecular weight 146.143 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. "1,3-Indandione (CAS 606-23-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1033195-2 (accessed 2026-11-06).

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