Gentisic acid sodium salt hydrate
Gentisic acid sodium salt hydrate (CAS 4955-90-2) is an organic sodium salt with the formula C7H5O4Na. This compound, with a molecular weight of 176.10 g/mol, serves as a valuable reactant in chemical synthesis. It is particularly noted for its involvement in oxidative coupling reactions, leading to products with antioxidant properties and tyrosinase inhibitory activity. TSS offers this chemical with a purity of ≥98%.
- IUPAC
- 2,5-Dihydroxybenzoic acid sodium salt,5-Hydroxysalicylate sodium
- Synonyms
- 2,5-Dihydroxybenzoic acid sodium salt,5-Hydroxysalicylate sodium

Antioxidant Synthesis
Utilised as a reactant in oxidative coupling reactions to synthesise compounds with beneficial antioxidant properties. The resulting products can help mitigate oxidative stress.
Tyrosinase Inhibition
Serves as a precursor for compounds exhibiting tyrosinase inhibitory activity. This application is relevant in cosmetic and dermatological research for skin-lightening agents.
Chemical Synthesis Intermediate
A versatile building block in organic synthesis, enabling the formation of complex molecules through various chemical transformations. Suitable for research and development.
| Molecular weight | 176.10 |
|---|---|
| Linear formula | C7H5O4Na |
| Assay | ≥98% |
| Application | Reactant involved in oxidative coupling reactions followed by the product use as an antioxidant and tyrosinase inhibitor1 |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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 Gentisic acid sodium salt hydrate used for?
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Gentisic acid sodium salt hydrate (CAS 4955-90-2) is primarily used as a reactant in oxidative coupling reactions to produce compounds with antioxidant properties and tyrosinase inhibitory activity. It also functions as a general building block in organic chemical synthesis.
What are the CAS number and formula for Gentisic acid sodium salt hydrate?
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The CAS number is 4955-90-2 and the molecular formula is C7H5O4Na.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Gentisic acid sodium salt hydrate with a purity of ≥98%. This product is supplied for research and manufacturing purposes and is not represented as USP, BP, EP, or any other pharmacopoeia grade.
How should Gentisic acid sodium salt hydrate be handled?
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Handle with appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. The compound has a WGK of 3 (highly hazardous to water).
Is Gentisic acid sodium salt hydrate a controlled substance?
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Based on the provided data, Gentisic acid sodium salt hydrate is not classified as a controlled substance.
How is Gentisic acid sodium salt hydrate shipped and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals. This product can be packed and shipped internationally, adhering to all relevant shipping regulations for chemical compounds.
How can I request a sample or quote for Gentisic acid sodium salt hydrate?
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To request a sample or a quote, please contact our sales team through the TSS website or by direct inquiry. Please reference the product name and CAS number (4955-90-2).
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