2,7-Dihydroxy-9-fluorenone

Also known as: 2,7-Dihydroxy-9H-fluoren-9-one, 2,7-Dihydroxyfluorenone, 2,7-Dihydroxy-9-fluo, 2,7-Dihydroxy-fluoren-9-one, 2,7-Dihydroxyl-9-Fluorenone, 2,7-Fluorenonediol, 2,7-dioxy-9H-fluoren-9-one, 7-Dihydroxy-9-fluorenone, 9H-Fluoren-9-one, 2,7-dihydroxy-, MFCD00037141

2,7-Dihydroxy-9-fluorenone (CAS 42523-29-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C13H8O3 and a molecular weight of 212.201 g/mol. Key properties include a melting point of 329 °C, a boiling point of 444.5±20.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 236.7±18.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 42523-29-5
Jingsj CID: J-1090508-5
Molecular Formula: C₁₃H₈O₃
Molecular Weight: 212.201 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	329 °C
Boiling Point	444.5±20.0 °C at 760 mmHg
Density	1.5±0.1 g/cm3
Flash Point	236.7±18.3 °C
Exact Mass	212.047348
PSA	57.53000
LogP	2.71
Vapor Pressure	0.0±1.1 mmHg at 25°C
Refractive Index	1.749

Customs & Trade Information

HS Code	2914501900
Summary	2914501900 other ketone-phenols。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2,7-Dihydroxy-9-fluorenone?

The CAS number of 2,7-Dihydroxy-9-fluorenone is 42523-29-5.

What are the molecular formula and molecular weight of 2,7-Dihydroxy-9-fluorenone?

2,7-Dihydroxy-9-fluorenone has molecular formula C13H8O3 and molecular weight 212.201 g/mol.

What are the upstream and downstream products of 2,7-Dihydroxy-9-fluorenone?

For 2,7-Dihydroxy-9-fluorenone, Upstream Products: 4,4'-Dihydroxy-[1,1'-biphenyl]-2-carboxylic acid, 4-Hydroxyphenylboronic acid, Methyl 2-bromo-5-hydroxybenzoate; Downstream Products: Tilorone, 9H-Fluorene-2,7-diol.

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. "2,7-Dihydroxy-9-fluorenone (CAS 42523-29-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1090508-5 (accessed 2026-11-09).

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