4-Azidobenzoic acid solution
4-Azidobenzoic acid solution (CAS: 6427-66-3, Formula: C7H5N3O2, MW: 163.13) is a chemical reagent supplied by Tech Serve Solutions. It is a solution of an aromatic azide, often utilized as a building block in chemical synthesis and organic chemistry. Its unique azide functionality allows for participation in various coupling and click chemistry reactions, making it valuable in research and development settings.
- IUPAC
- 9-Azidobenzoic acid solution

Organic Synthesis
4-Azidobenzoic acid solution serves as a versatile building block in organic synthesis. The azide group can undergo cycloaddition reactions, such as the copper-catalyzed azide-alkyne cycloaddition (CuAAC), to form triazoles, which are prevalent in medicinal chemistry and materials science.
Click Chemistry Reagent
This solution is a key component in click chemistry, enabling the efficient and selective formation of covalent bonds. It is particularly useful for bioconjugation and labelling applications where mild reaction conditions are essential.
Research and Development
Used in academic and industrial research laboratories, 4-Azidobenzoic acid solution facilitates the exploration of novel molecular architectures and the development of new synthetic methodologies. Its application aids in the creation of complex organic molecules.
| Molecular weight | 163.13 |
|---|---|
| Empirical formula | C7H5N3O2 |
| Assay | ≥95.0% (HPLC) |
| Concentration | ~0.2 M in tert-butyl methyl ether |
| Storage temperature | 2-8°C |
| Impurities tested | ≤2.0% water |
| Application | Review1 |



Hazard statements
- H225Highly flammable liquid and vapour
- H315Causes skin irritation
- H373May cause damage to organs through prolonged exposure
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
| Flash point | -33 °C / -27.4 °F |
|---|---|
| Transport (UN / ADR) | UN 2398 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xn |
| Risk statements (R) | 11-38-48/20/21/22 |
| Safety statements (S) | 16 |
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-Azidobenzoic acid solution used for?
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4-Azidobenzoic acid solution is primarily used as a building block in organic synthesis and as a reagent in click chemistry reactions. It facilitates the creation of triazole rings and is valuable in research and development for constructing complex organic molecules.
What is the CAS number and formula for 4-Azidobenzoic acid solution?
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The CAS number for 4-Azidobenzoic acid solution is 6427-66-3, and its molecular formula is C7H5N3O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Azidobenzoic acid solution with an assay of ≥95.0% (HPLC), containing ≤2.0% water. We do not represent this product as USP, BP, or EP grade.
What are the safety considerations when handling 4-Azidobenzoic acid solution?
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This solution is a Danger hazard class, being flammable (H225) and causing skin irritation (H315) and potential organ damage with prolonged exposure (H373). It has a low flash point of -33 °C. Always handle with appropriate personal protective equipment in a well-ventilated area, keeping away from ignition sources (P210).
How is 4-Azidobenzoic acid solution shipped and exported?
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4-Azidobenzoic acid solution is classified under UN 2398, Hazard Class 3, Packing Group II, indicating it is a flammable liquid. Tech Serve Solutions handles the export of this chemical adhering to all relevant transportation regulations.
How can I request a sample or quote for 4-Azidobenzoic acid solution?
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To request a sample or a quote for 4-Azidobenzoic acid solution, please contact our sales team through the website or by phone. Provide your specific requirements, and we will assist you promptly.
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