3-Amino-4-hydroxybenzoic acid
3-Amino-4-hydroxybenzoic acid (CAS: 1571-72-8, Formula: H2NC6H3(OH)CO2H) is a specialised organic compound with a molecular weight of 153.14. It functions as a key building block in various chemical syntheses. Its structural features, including an amino group and a hydroxyl group on a benzoic acid core, make it valuable in the development of complex molecules. Primarily utilised in chemical research and synthesis, it serves as an intermediate in the creation of diverse organic compounds.

Chemical Synthesis Intermediate
3-Amino-4-hydroxybenzoic acid serves as a crucial intermediate in the synthesis of more complex organic molecules. Its functional groups allow for various chemical transformations, making it a versatile building block for new compounds.
Research and Development
This compound is widely employed in research laboratories for the exploration of new chemical pathways and the development of novel materials. Its structure is relevant in fields such as medicinal chemistry and materials science.
Peptide Chemistry
As an unnatural amino acid derivative, it finds application in peptide chemistry for the synthesis of modified peptides. This enables the study of peptide structure-activity relationships and the development of peptidomimetics.
| Molecular weight | 153.14 |
|---|---|
| Linear formula | H2NC6H3(OH)CO2H |
| Assay | 97% |
| Melting point | 208 °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 |
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 3-Amino-4-hydroxybenzoic acid primarily used for?
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3-Amino-4-hydroxybenzoic acid is primarily used as an intermediate in chemical synthesis and in research and development, particularly in areas like peptide chemistry and the creation of unnatural amino acid derivatives.
What is the CAS number and chemical formula for 3-Amino-4-hydroxybenzoic acid?
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The CAS number for 3-Amino-4-hydroxybenzoic acid is 1571-72-8, and its chemical formula is H2NC6H3(OH)CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Amino-4-hydroxybenzoic acid with a minimum assay of 97%. We do not represent this product as USP, BP, EP or pharmacopoeia grade.
What are the primary safety concerns when handling 3-Amino-4-hydroxybenzoic acid?
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3-Amino-4-hydroxybenzoic acid is classified as a Warning substance. It is harmful if swallowed (H302), causes skin irritation (H315), causes serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask (type N95 US recommended), eyeshields, and gloves, should be used. Ensure good ventilation.
How is 3-Amino-4-hydroxybenzoic acid shipped and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 3-Amino-4-hydroxybenzoic acid. We adhere to all relevant shipping regulations for international export.
How can I request a quote or sample for 3-Amino-4-hydroxybenzoic acid?
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To request a quote or sample for 3-Amino-4-hydroxybenzoic acid, please use the contact form on our website or contact our sales team directly with your requirements.
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