2-(2,4-Dihydroxybenzoyl)benzoic acid

2-(2,4-二羟基苯甲酰基)苯甲酸

Also known as: Aspirin Impurity G, Fluorescein EP Impurity C, Fluorescein impurity C, Fluorescein impurity C CRS, Acetylsalicylic Acid Impurity 12, 2',4'-Dihydroxy-2-benzoylbenzoic acid, Benzoic acid, 2-(2,4-dihydroxybenzoyl)-, Aspirin Impurity (2-(2,4-Dihydroxybenzoyl)benzoic Acid), 2-(2,4-dihydroxyphenyl)carbonylbenzoic acid

2-(2,4-Dihydroxybenzoyl)benzoic acid (CAS 2513-33-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H10O5 and a molecular weight of 258.226 g/mol. It is also known as Aspirin Impurity G, Fluorescein EP Impurity C and Fluorescein impurity C. Key properties include a melting point of 202-205ºC (dec.), a boiling point of 555.7±33.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 304.0±21.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2513-33-9
Jingsj CID
J-1415193-4
Molecular Formula
C14H10O5
Chinese Name
2-(2,4-二羟基苯甲酰基)苯甲酸
Molecular Weight
258.226 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point202-205ºC (dec.)
Boiling Point555.7±33.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point304.0±21.9 °C

Frequently Asked Questions

What is the CAS number of 2-(2,4-Dihydroxybenzoyl)benzoic acid?

The CAS number of 2-(2,4-Dihydroxybenzoyl)benzoic acid is 2513-33-9.

What are the molecular formula and molecular weight of 2-(2,4-Dihydroxybenzoyl)benzoic acid?

2-(2,4-Dihydroxybenzoyl)benzoic acid has molecular formula C14H10O5 and molecular weight 258.226 g/mol.

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

Last updated:

How to cite: Jingsj. "2-(2,4-Dihydroxybenzoyl)benzoic acid (CAS 2513-33-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1415193-4 (accessed 2026-10-24).

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