4-Aminobenzoic acid sodium salt hydrate
4-Aminobenzoic acid sodium salt hydrate (CAS: 206557-08-6), with the linear formula H₂NC₆H₄CO₂Na·xH₂O, is a hydrated sodium salt of 4-aminobenzoic acid. This compound serves as a valuable building block in chemical synthesis and is particularly useful in peptide chemistry and the development of unnatural amino acid derivatives. Its properties make it a relevant reagent in chemical biology research.

Chemical Synthesis
Utilised as a reactant or intermediate in the synthesis of more complex organic molecules. Its aromatic amine and carboxylate functionalities offer diverse reaction pathways.
Peptide Chemistry
Incorporated into peptide chains, potentially as a modified amino acid residue. Useful for creating peptides with specific structural or functional properties.
Chemical Biology
Applied as a tool or probe in biological systems to study molecular interactions or pathways. Can be functionalised for targeted delivery or detection.
Unnatural Amino Acid Derivatives
Serves as a precursor for synthesising non-proteinogenic amino acids. These derivatives can be used to explore novel peptide structures and functions.
| Molecular weight | 159.12 (anhydrous basis) |
|---|---|
| Linear formula | H2NC6H4CO2Na·xH2O |
| Assay | 99% |

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) | 3 |
| 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 4-Aminobenzoic acid sodium salt hydrate used for?
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4-Aminobenzoic acid sodium salt hydrate is primarily used in chemical synthesis, peptide chemistry, chemical biology, and as a precursor for unnatural amino acid derivatives.
What are the CAS number and formula for 4-Aminobenzoic acid sodium salt hydrate?
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The CAS number is 206557-08-6 and the linear formula is H₂NC₆H₄CO₂Na·xH₂O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Aminobenzoic acid sodium salt hydrate with an assay of 99%. This product is supplied for research and technical purposes and is not represented as USP, BP, EP, or pharmaceutical grade.
What are the safety and handling recommendations for this product?
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This compound is classified as a Warning with hazards including skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Appropriate personal protective equipment includes a dust mask (type N95 or equivalent), eyeshields, and gloves. Handle in a well-ventilated area.
How is 4-Aminobenzoic acid sodium salt hydrate packed, shipped, and exported?
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Tech Serve Solutions adheres to strict international shipping regulations for chemical products. Specific packaging details are confirmed upon order, and we offer global export services.
How can I request a sample or a quote?
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To request a sample or obtain a quote for 4-Aminobenzoic acid sodium salt hydrate, please use the contact form on our website or contact our sales team directly.
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