4-(Phenylazo)benzoic acid
4-(Phenylazo)benzoic acid (CAS: 1562-93-2) is an organic compound with the formula C6H5N=NC6H4CO2H and a molecular weight of 226.23 g/mol. This azo compound serves as a valuable building block in organic synthesis. It is primarily utilised in chemical research and development for constructing more complex molecules, particularly those incorporating the azo functional group. Its structure makes it suitable for various synthetic pathways.

Organic Synthesis Intermediate
This compound functions as a key intermediate in the synthesis of various organic molecules. Its reactive functional groups allow for diverse chemical transformations.
Building Block for Azo Compounds
As an azo compound itself, it is employed in the preparation of other complex azo derivatives and related nitrogen-containing structures.
Research and Development
Utilised in laboratory settings for exploring new synthetic routes and developing novel chemical entities.
| Molecular weight | 226.23 |
|---|---|
| Linear formula | C6H5N=NC6H4CO2H |
| Assay | 98% |
| Melting point | 247-250 °C(lit.) |

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
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xi |
| Risk statements (R) | 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 4-(Phenylazo)benzoic acid used for?
+
4-(Phenylazo)benzoic acid is used as a building block and intermediate in organic synthesis, particularly for the creation of more complex azo compounds and in research and development.
What are the CAS number and formula for 4-(Phenylazo)benzoic acid?
+
The CAS number is 1562-93-2 and the chemical formula is C6H5N=NC6H4CO2H.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 4-(Phenylazo)benzoic acid with an assay of 98%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
What are the main safety concerns when handling 4-(Phenylazo)benzoic acid?
+
4-(Phenylazo)benzoic acid is a warning substance that causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Handle with appropriate personal protective equipment in a well-ventilated area.
How is 4-(Phenylazo)benzoic acid packaged and exported?
+
Products are carefully packed according to international regulations for safe transport and are exported globally by Tech Serve Solutions.
How can I request a quote or sample?
+
Please contact our sales team or use the online form to request a quote or a sample of 4-(Phenylazo)benzoic acid.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis