2-Amino-5-hydroxybenzoic acid
2-Amino-5-hydroxybenzoic acid (CAS: 394-31-0), with the linear formula HOC₆H₃(NH₂)CO₂H and a molecular weight of 153.14 g/mol, is a valuable aromatic amino acid derivative. This compound serves as a key building block in various chemical synthesis pathways, particularly in the fields of chemical biology and peptide chemistry. Its unique structure allows for versatile applications in the development of novel compounds and research initiatives.
- IUPAC
- 5-Hydroxyanthranilic acid

Chemical Synthesis Intermediate
Utilised as a precursor in the synthesis of more complex organic molecules. Its functional groups (amine, hydroxyl, and carboxylic acid) allow for diverse chemical transformations.
Peptide Chemistry Research
Serves as an unnatural amino acid derivative for incorporation into peptides, enabling the study of peptide structure-activity relationships and the development of novel peptidomimetics.
Chemical Biology Studies
A useful reagent in chemical biology for investigating biological pathways and developing molecular probes. Its structure can be modified to target specific biological processes.
| Molecular weight | 153.14 |
|---|---|
| Linear formula | HOC6H3(NH2)CO2H |
| Assay | 98% |
| Melting point | 247 °C (dec.)(lit.) |

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 2-Amino-5-hydroxybenzoic acid used for?
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2-Amino-5-hydroxybenzoic acid (CAS: 394-31-0) is primarily used as an intermediate in chemical synthesis, a building block in peptide chemistry, and a reagent in chemical biology research.
What are the CAS number and chemical formula for 2-Amino-5-hydroxybenzoic acid?
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The CAS number is 394-31-0 and the linear chemical formula is HOC₆H₃(NH₂)CO₂H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Amino-5-hydroxybenzoic acid with a minimum assay of 98%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 2-Amino-5-hydroxybenzoic acid be handled?
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Handle with appropriate personal protective equipment, including a dust mask (type N95 recommended), eyeshields, and gloves. Avoid breathing dust and ensure adequate ventilation. It is classified as harmful if swallowed and causes skin and eye irritation.
Is 2-Amino-5-hydroxybenzoic acid a controlled substance?
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The provided data does not indicate that 2-Amino-5-hydroxybenzoic acid is a controlled substance.
How is 2-Amino-5-hydroxybenzoic acid packed and shipped?
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2-Amino-5-hydroxybenzoic acid is typically supplied in quantities suitable for laboratory and research use and is exported globally by TSS.
How can I request a quote or sample for 2-Amino-5-hydroxybenzoic acid?
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Please contact our sales team or use the online enquiry form on the Tech Serve Solutions website to request a quote or a sample.
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