2,3-Dihydroxybenzoic acid
2,3-Dihydroxybenzoic acid (CAS: 303-38-8), a substituted benzoic acid with the molecular formula C7H6O4 and a molecular weight of 154.12 g/mol, is a valuable organic building block. This compound features two hydroxyl groups and a carboxyl group attached to a benzene ring. Its distinct chemical structure makes it useful in various synthetic organic chemistry applications, particularly in the creation of more complex molecules.
- Synonyms
- (HO)2C6H3CO2H

Organic Synthesis Intermediate
2,3-Dihydroxybenzoic acid serves as a key intermediate in the synthesis of diverse organic compounds. Its functional groups allow for various chemical transformations, enabling its use in the construction of pharmaceuticals and other fine chemicals.
Research and Development
Utilised in academic and industrial research settings, this compound aids in the exploration of novel chemical pathways and the development of new materials. Its well-defined structure makes it a reliable component in reaction studies.
Chemical Building Block
As a fundamental building block, 2,3-Dihydroxybenzoic acid is employed in the creation of more complex molecular architectures. It is particularly relevant in heterocyclic chemistry and the synthesis of specialty chemicals.
| Molecular weight | 154.12 |
|---|---|
| Linear formula | (HO)2C6H3CO2H |
| Assay | 99% |
| Grade | purum |
| Solubility | methanol: soluble50 mg/mL, clear to faintly hazy, orange |
| Melting point | 204-206 °C(lit.) |

Hazard statements
- 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) | 2 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 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 2,3-Dihydroxybenzoic acid used for?
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2,3-Dihydroxybenzoic acid is primarily used as an intermediate in organic synthesis and as a building block in chemical research and development for constructing complex molecules.
What are the CAS number and formula for 2,3-Dihydroxybenzoic acid?
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The CAS number for 2,3-Dihydroxybenzoic acid is 303-38-8, and its linear formula is (HO)2C6H3CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,3-Dihydroxybenzoic acid in a purum grade with an assay of 99%.
How should 2,3-Dihydroxybenzoic acid be handled?
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2,3-Dihydroxybenzoic acid is classified as an irritant to the skin, eyes, and respiratory system. Handle with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves, in a well-ventilated area.
How is 2,3-Dihydroxybenzoic acid packed and shipped?
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2,3-Dihydroxybenzoic acid is packed and exported according to industry standards to ensure safe transit. Please contact us for specific shipping and export inquiries.
How can I request a sample or quote for 2,3-Dihydroxybenzoic acid?
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To request a sample or a quote for 2,3-Dihydroxybenzoic acid, please contact our sales team through the website or by phone.
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