5,5'-Thiodisalicylic acid

5,5'-硫代双水杨酸

Also known as: 5-(3-carboxy-4-hydroxyphenyl)sulfanyl-2-hydroxybenzoic acid, Benzoic acid, 3,3'-thiobis[6-hydroxy-, 6,6'-Dihydroxy-3,3'-sulfandiyl-di-benzoic acid, 6,6'-dihydroxy-3,3'-sulfanediyl-di-benzoic acid, Thiodisalicylic acid

5,5'-Thiodisalicylic acid (CAS 1820-99-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H10O6S and a molecular weight of 306.291 g/mol. It is also known as 5-(3-carboxy-4-hydroxyphenyl)sulfanyl-2-hydroxybenzoic acid, Benzoic acid, 3,3'-thiobis[6-hydroxy- and 6,6'-Dihydroxy-3,3'-sulfandiyl-di-benzoic acid. Key properties include a boiling point of 645.5±55.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 344.2±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1820-99-1
Jingsj CID
J-15961-2
Molecular Formula
C14H10O6S
Chinese Name
5,5'-硫代双水杨酸
Molecular Weight
306.291 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point645.5±55.0 °C at 760 mmHg
Density1.7±0.1 g/cm3
Flash Point344.2±31.5 °C

Frequently Asked Questions

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

The CAS number of 5,5'-Thiodisalicylic acid is 1820-99-1.

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

5,5'-Thiodisalicylic acid has molecular formula C14H10O6S and molecular weight 306.291 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'-Thiodisalicylic acid (CAS 1820-99-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-15961-2 (accessed 2026-10-26).

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