5-Acenaphthenecarboxylic acid

5-苊甲酸

Also known as: 1,2-dihydroacenaphthylene-5-carboxylic acid, 1,2-DIHYDROACENAPHTHYLENE-5-CARBOXYLIC ACID, 5-ACENAPHTHENECARBOXYLIC ACID, 5-Acenaphthylenecarboxylic acid, 1,2-dihydro-, 5-acenaphthenecarboxylic acid, 5-acenaphthoic acid, acenaphthene-5-carboxylic acid, 1,2-dihydro-5-acenaphthylenecarboxylic acid, Acenaphthen-5-carbonsaeure, Acenaphthoesaeure, NSC 137409, MFCD00222369, A2076/0087263, ChemDiv2_002166, RARECHEM AL BE 0825

5-Acenaphthenecarboxylic acid (CAS 55720-22-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C13H10O2 and a molecular weight of 198.217 g/mol. It is also known as 1,2-dihydroacenaphthylene-5-carboxylic acid, 1,2-DIHYDROACENAPHTHYLENE-5-CARBOXYLIC ACID and 5-ACENAPHTHENECARBOXYLIC ACID. Key properties include a melting point of 220-223ºC, a boiling point of 417.0±24.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 185.3±17.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
55720-22-4
Jingsj CID
J-1115-8
Molecular Formula
C13H10O2
Chinese Name
5-苊甲酸
Molecular Weight
198.217 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point220-223ºC
Boiling Point417.0±24.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point185.3±17.6 °C

Frequently Asked Questions

What is the CAS number of 5-Acenaphthenecarboxylic acid?

The CAS number of 5-Acenaphthenecarboxylic acid is 55720-22-4.

What are the molecular formula and molecular weight of 5-Acenaphthenecarboxylic acid?

5-Acenaphthenecarboxylic acid has molecular formula C13H10O2 and molecular weight 198.217 g/mol.

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

Last updated:

How to cite: Jingsj. "5-Acenaphthenecarboxylic acid (CAS 55720-22-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1115-8 (accessed 2026-10-23).

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