5-Sulfosalicylic acid dihydrate

5-磺基水杨酸二水合物

Also known as: 2-Hydroxy-5-sulfobenzoic acid dihydrate, Sulfosalicylic acid dihydrate, 3-Carboxy-4-hydroxybenzenesulfonic acid dihydrate, 5-Sulphosalicylic acid dihydrate, Benzoic acid, 2-hydroxy-5-sulfo-, dihydrate, Salicylic acid, 5-sulfo-, dihydrate

5-Sulfosalicylic acid dihydrate (CAS 5965-83-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H10O8S and a molecular weight of 254.214 g/mol. It is also known as 2-Hydroxy-5-sulfobenzoic acid dihydrate, Sulfosalicylic acid dihydrate and 3-Carboxy-4-hydroxybenzenesulfonic acid dihydrate. Key properties include a melting point of 105-110 °C(lit.), a boiling point of 705.7ºC at 760 mmHg, a density of 0,8 g/cm3 and a flash point of 150°C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5965-83-3
Jingsj CID
J-36023-4
Molecular Formula
C7H10O8S
Chinese Name
5-磺基水杨酸二水合物
Molecular Weight
254.214 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point105-110 °C(lit.)
Boiling Point705.7ºC at 760 mmHg
Density0,8 g/cm3
Flash Point150°C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 5-Sulfosalicylic acid dihydrate?

The CAS number of 5-Sulfosalicylic acid dihydrate is 5965-83-3.

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

5-Sulfosalicylic acid dihydrate has molecular formula C7H10O8S and molecular weight 254.214 g/mol.

Is 5-Sulfosalicylic acid dihydrate hazardous?

5-Sulfosalicylic acid dihydrate has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "5-Sulfosalicylic acid dihydrate (CAS 5965-83-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36023-4 (accessed 2026-10-23).

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