3-Aminobenzoic acid
3-Aminobenzoic acid (CAS: 99-05-8, Formula: H2NC6H4CO2H, Molar Mass: 137.14) is an aromatic amino acid derivative. It is a versatile intermediate primarily utilised in chemical synthesis and peptide chemistry. Its structure, featuring both an amino and a carboxylic acid group on a benzene ring, makes it valuable for creating more complex organic molecules. This compound is a key building block in various research and development applications within chemical biology.

Chemical Synthesis Intermediate
3-Aminobenzoic acid serves as a crucial building block in the synthesis of diverse organic compounds. Its dual functionality allows for various chemical transformations, enabling the creation of complex molecules for research and industrial purposes.
Peptide and Unnatural Amino Acid Chemistry
The compound is employed in peptide chemistry and the development of unnatural amino acid derivatives. It can be incorporated into peptide chains or modified to introduce specific functionalities, aiding in the study of protein structure and function.
Chemical Biology Research
In chemical biology, 3-Aminobenzoic acid is used as a tool for probing biological systems. It can be modified and utilised in assays or as part of molecular probes to investigate biological pathways and molecular interactions.
| Molecular weight | 137.14 |
|---|---|
| Linear formula | H2NC6H4CO2H |
| Assay | 98% |
| Melting point | 178-180 °C(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 |
|---|---|
| Flash point | 150 °C / 302 °F |
| Water hazard class (WGK, DE) | 2 |
| 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-Aminobenzoic acid used for?
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3-Aminobenzoic acid is primarily used as an intermediate in chemical synthesis, particularly in peptide chemistry and the creation of unnatural amino acid derivatives. It also finds application in chemical biology research.
What are the CAS number and formula for 3-Aminobenzoic acid?
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The CAS number for 3-Aminobenzoic acid is 99-05-8, and its chemical formula is H2NC6H4CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Aminobenzoic acid with an assay of 98%. We do not represent this product as USP, BP, or EP grade.
How should 3-Aminobenzoic acid be handled safely?
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Handle with caution. 3-Aminobenzoic acid is harmful if swallowed and causes skin, eye, and respiratory irritation. Use appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. Ensure adequate ventilation.
How is 3-Aminobenzoic acid packed and exported?
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Tech Serve Solutions, as a specialist global supplier and exporter, ensures appropriate packing for safe handling, storage, and international shipment of 3-Aminobenzoic acid.
How can I request a sample or quote for 3-Aminobenzoic acid?
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To request a sample or a quote for 3-Aminobenzoic acid, please contact our sales team via the website or direct enquiry channels.
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