5-Sulfosalicylic acid hydrate
5-Sulfosalicylic acid hydrate (CAS: 304851-84-1) is a crystalline organic compound with the formula HO3SC6H3-2-(OH)CO2H·xH2O. It functions as a versatile building block in chemical synthesis and is a valuable reagent in various analytical applications. Its structure incorporates both sulfonic acid and hydroxyl groups, contributing to its reactivity and utility in organic chemistry research and development.

Chemical Synthesis
Serves as an organic building block in the synthesis of more complex molecules. Its reactive functional groups allow for diverse chemical transformations.
Analytical Reagent
Used in laboratory settings for various analytical procedures. It can act as a precipitating agent for proteins and in the determination of certain ions.
Research and Development
A key intermediate for researchers exploring new chemical pathways and developing novel compounds in academic and industrial R&D.
| Molecular weight | 218.18 (anhydrous basis) |
|---|---|
| Linear formula | HO3SC6H3-2-(OH)CO2H·xH2O |
| Assay | 95% |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36/37/38 |
| Safety statements (S) | 26-36 |
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 5-Sulfosalicylic acid hydrate used for?
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5-Sulfosalicylic acid hydrate is primarily used as a building block in chemical synthesis and as a reagent in analytical chemistry, including protein precipitation and ion determination.
What are the CAS number and formula for 5-Sulfosalicylic acid hydrate?
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The CAS number is 304851-84-1 and the formula is HO3SC6H3-2-(OH)CO2H·xH2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Sulfosalicylic acid hydrate with an assay of 95%. We do not represent this product as USP, BP, or EP grade.
How should 5-Sulfosalicylic acid hydrate be handled safely?
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5-Sulfosalicylic acid hydrate is classified as a Warning substance (H302, H315, H319, H335). Handle with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. Ensure good ventilation and avoid breathing dust.
Can Tech Serve Solutions export this chemical?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 5-Sulfosalicylic acid hydrate.
How can I request a quote or sample?
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To request a quote or sample for 5-Sulfosalicylic acid hydrate, please contact our sales department through the website or by phone.
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