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9-Oxo-9H-fluorene-2-carboxylic acid

Also known as: 9-Fluorenone-2-carboxylic acid, 9-Oxo-2-fluorenecarboxylic acid, 9-oxofluorene-2-carboxylic acid, 9H-Fluorene-2-carboxylic acid, 9-oxo-, 2-carboxyfluoren-9-one

9-Oxo-9H-fluorene-2-carboxylic acid (CAS 784-50-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H8O3 and a molecular weight of 224.212 g/mol. Key properties include a melting point of >300 °C(lit.), a boiling point of 476.5±24.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 256.1±19.4 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
784-50-9
Jingsj CID
J-1520121-5
Molecular Formula
C14H8O3
Molecular Weight
224.212 g/mol
Category
Organic Acids
Last updated
11/3/2026

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Physicochemical Properties

Melting Point>300 °C(lit.)
Boiling Point476.5±24.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point256.1±19.4 °C
Exact Mass224.047348
PSA54.37000
LogP3.26
Vapor Pressure0.0±1.3 mmHg at 25°C
Refractive Index1.701

Customs & Trade Information

HS Code2918300090
Summary2918300090 other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 9-Oxo-9H-fluorene-2-carboxylic acid?

The CAS number of 9-Oxo-9H-fluorene-2-carboxylic acid is 784-50-9.

What are the molecular formula and molecular weight of 9-Oxo-9H-fluorene-2-carboxylic acid?

9-Oxo-9H-fluorene-2-carboxylic acid has molecular formula C14H8O3 and molecular weight 224.212 g/mol.

What are the upstream and downstream products of 9-Oxo-9H-fluorene-2-carboxylic acid?

For 9-Oxo-9H-fluorene-2-carboxylic acid, Upstream Products: 2-Acetylfluorene, p-Xylene, 9H FLUORENE; Downstream Products: 2-Methyl-9H-fluorene, 9H-Fluorene-2-carboxylic acid, [1,1'-Biphenyl]-2,4'-dicarboxylic acid.

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

Last updated:

How to cite: Jingsj. "9-Oxo-9H-fluorene-2-carboxylic acid (CAS 784-50-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1520121-5 (accessed 2026-11-09).

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