2-Sulfobenzoic acid hydrate
2-Sulfobenzoic acid hydrate (CAS: 123333-68-6), with the chemical formula HO3SC6H4CO2H · xH2O, is a key organic compound. It presents as a hydrate, with its anhydrous molar mass being 202.18 g/mol. This versatile chemical serves as an important building block in various synthesis pathways, particularly within organic chemistry and the development of heterocyclic compounds. Its utility spans chemical synthesis and research applications.

Organic Synthesis Intermediate
2-Sulfobenzoic acid hydrate functions as a crucial intermediate in the synthesis of complex organic molecules. Its structure lends itself to further chemical modification for the creation of diverse compounds.
Heterocyclic Chemistry
This compound is valuable in the field of heterocyclic chemistry, acting as a precursor for the construction of ring systems containing atoms other than carbon.
Building Block for Specialty Chemicals
It serves as a foundational building block for developing various specialty chemicals and fine chemical intermediates. Researchers leverage its reactivity for targeted chemical transformations.
| Molecular weight | 202.18 (anhydrous basis) |
|---|---|
| Linear formula | HO3SC6H4CO2H · xH2O |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 3261 8 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-27-28-36/37/39-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 2-Sulfobenzoic acid hydrate used for?
+
2-Sulfobenzoic acid hydrate is primarily used as a building block in chemical synthesis, particularly for organic compounds and heterocyclic structures, and in general laboratory research.
What is the CAS number and chemical formula for 2-Sulfobenzoic acid hydrate?
+
The CAS number is 123333-68-6, and the chemical formula is HO3SC6H4CO2H · xH2O.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 2-Sulfobenzoic acid hydrate in a form suitable for technical and research applications. We do not represent this product as meeting USP, BP, or EP pharmacopoeial standards unless explicitly stated otherwise on the product documentation.
How should 2-Sulfobenzoic acid hydrate be handled safely?
+
2-Sulfobenzoic acid hydrate is classified as corrosive (GHS05, Hazard Statement H314), causing severe skin burns and eye damage. Appropriate personal protective equipment, including eye shields, face shields, gloves, and respiratory protection (type N100 or P3), must be used. Handle in a well-ventilated area.
Is 2-Sulfobenzoic acid hydrate shipped internationally?
+
Yes, Tech Serve Solutions specialises in supplying and exporting fine chemicals globally, including 2-Sulfobenzoic acid hydrate, adhering to all relevant shipping and customs regulations.
How can I request a sample or a quote for 2-Sulfobenzoic acid hydrate?
+
You can request a sample or obtain a quotation by contacting our sales team directly through our website or by calling us. Please specify the quantity required and your delivery location.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis