5,5'-Methylenedisalicylic acid

5,5'-亚甲基二水杨酸

Also known as: 2,2'-Dihydroxy-5,5'-methylenedibenzoic acid, 3,3'-Methylenebis[6-hydroxybenzoic acid], 4,4'-Dihydroxydiphenylmethane-3,3'-dicarboxylic acid, 4,4'-DIHYDROXYDIPHENYLMETHANE-3,3'-DICARBOXYLIC ACID, 5,5'-Methylenebis(2-hydroxybenzoic acid), 5-[(3-carboxy-4-hydroxyphenyl)methyl]-2-hydroxybenzoic acid, MFCD00016506, EINECS 204-530-5, TIMTEC-BB SBB001177

5,5'-Methylenedisalicylic acid (CAS 122-25-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C15H12O6 and a molecular weight of 288.25200 g/mol. It is also known as 2,2'-Dihydroxy-5,5'-methylenedibenzoic acid, 3,3'-Methylenebis[6-hydroxybenzoic acid] and 4,4'-Dihydroxydiphenylmethane-3,3'-dicarboxylic acid. Key properties include a melting point of 235-242 °C, a boiling point of 569.6ºC at 760 mmHg, a density of 1.511 g/cm3 and a flash point of 312.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
122-25-8
Jingsj CID
J-3279-1
Molecular Formula
C15H12O6
Chinese Name
5,5'-亚甲基二水杨酸
Molecular Weight
288.25200 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point235-242 °C
Boiling Point569.6ºC at 760 mmHg
Density1.511 g/cm3
Flash Point312.3ºC

Frequently Asked Questions

What is the CAS number of 5,5'-Methylenedisalicylic acid?

The CAS number of 5,5'-Methylenedisalicylic acid is 122-25-8.

What are the molecular formula and molecular weight of 5,5'-Methylenedisalicylic acid?

5,5'-Methylenedisalicylic acid has molecular formula C15H12O6 and molecular weight 288.25200 g/mol.

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

Last updated:

How to cite: Jingsj. "5,5'-Methylenedisalicylic acid (CAS 122-25-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3279-1 (accessed 2026-10-22).

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