Azobenzene
Azobenzene (CAS: 103-33-3), with the chemical formula C6H5N=NC6H5 and a molecular weight of 182.22 g/mol, is an organic compound featuring an azo group linking two phenyl rings. It is primarily utilised as a building block in organic synthesis and as a component in the study of photochemical reactions due to its trans-cis isomerisation properties. Azobenzene is supplied by Tech Serve Solutions for research and industrial applications.
Organic Synthesis
Azobenzene serves as a versatile building block for the synthesis of more complex organic molecules. Its azo functionality can be modified or participate in various chemical transformations.
Photochemistry Research
The compound is well-known for its reversible photoisomerisation between cis and trans forms upon irradiation. This property makes it a model compound for studying light-induced molecular rearrangements.
Dye and Pigment Precursor
Historically, azo compounds have been important intermediates in the production of dyes and pigments. Azobenzene's structure suggests its potential utility in this area for creating chromophores.
| Molecular weight | 182.22 |
|---|---|
| Linear formula | C6H5N=NC6H5 |
| Assay | 96% |
| Boiling point | 293 °C(lit.) |
| Density | 1.09 g/mL at 25 °C(lit.) |
| Vapour pressure | 1 mmHg (104 °C) |
| Autoignition temp | 890 °F |
| Melting point | 65-68 °C(lit.) |
Hazard statements
- H302Harmful if swallowed
- H332Harmful if inhaled
- H341Suspected of causing genetic defects
- H350May cause cancer
- H373May cause damage to organs through prolonged exposure
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P201Obtain special instructions before use
- P273Avoid release to the environment
- P281Use personal protective equipment as required
- P308IF exposed or concerned
- P501Dispose of contents and container per local regulations
| Protective equipment | Eyeshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Flash point | 100 °C / 212 °F |
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T,N |
| Risk statements (R) | 45-20/22-48/22-50/53-68 |
| Safety statements (S) | 53-45-60-61 |
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 Azobenzene primarily used for?
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Azobenzene is primarily used as a building block in organic synthesis and in photochemical research due to its photoisomerisation properties.
What are the CAS number and chemical formula for Azobenzene?
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The CAS number for Azobenzene is 103-33-3, and its chemical formula is C6H5N=NC6H5.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Azobenzene with a minimum assay of 96%. We do not represent this product as USP, BP, or EP grade.
What are the main hazards associated with Azobenzene?
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Azobenzene is dangerous and can cause harm if swallowed or inhaled (H302, H332). It is suspected of causing genetic defects and cancer (H341, H350), may cause damage to organs through prolonged or repeated exposure (H373), and is very toxic to aquatic life with long-lasting effects (H410). Appropriate personal protective equipment, including eyeshields and a particle respirator, must be used.
How is Azobenzene packed and shipped?
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Azobenzene is shipped as UN 3077, Class 9, Packing Group III, indicating it is an environmentally hazardous substance, solid, n.o.s. Packing methods adhere to international shipping regulations for hazardous materials.
How can I request a sample or quote for Azobenzene?
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To request a sample or quote for Azobenzene, please contact our sales department through the website or by phone, providing your specific requirements.
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