Hydrazobenzene
Hydrazobenzene (CAS 122-66-7), with the linear formula C 6 H 5 NHNHC 6 H 5 and a molecular weight of 184.24 g/mol, is a nitrogen-containing organic compound. It serves as a valuable reactant in various chemical synthesis pathways, including insertion reactions, reduction processes, and mechanistic studies of organic rearrangements. Its utility extends to the formation of complex organometallic and cluster compounds.
- IUPAC
- N,N′-Diphenylhydrazine,N,N′-Bianiline,NSC 3510
- Synonyms
- N,N′-DiphenylhydrazineN,N′-BianilineNSC 3510

Organometallic Reactant
Hydrazobenzene is employed as a reactant in insertion reactions with organometallic tantalum complexes, facilitating the synthesis of novel coordination compounds.
Reduction Chemistry
It acts as a substrate in reduction reactions catalysed by titanium(III) trichloride, yielding amine products and contributing to reductive organic transformations.
Mechanistic Studies
This compound is utilised in research to investigate the mechanistic pathways of the characteristic hydrazobenzene rearrangement, a key reaction in organic chemistry.
Silylene Reactions
Hydrazobenzene reacts with N-heterocyclic stable silylenes, offering insights into the reactivity of these unique silicon-based species.
Cluster Complex Synthesis
It is involved in the synthesis of dimanganese amide hydrazide cluster complexes, expanding the scope of inorganic and organometallic synthesis.
| Molecular weight | 184.24 |
|---|---|
| Linear formula | C6H5NHNHC6H5 |
| Application | Reactant involved in:• Insertion reactions with organometallic tantalum complexes1• Reduction reactions catalyzed by titanium(III) trichloride yielding amines2• Studying the mechanism of hydrazobenzene rearrangement3• Reaction with N-heterocyclic stable silylene4• Synthesis of dimanganese amide hydrazide cluster complexes5• Iron-mediated hydrazine reductions yielding iron arylimide cubanes6 |
| Melting point | 123-126 °C(lit.) |



Hazard statements
- H302Harmful if swallowed
- H350May cause cancer
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P201Obtain special instructions before use
- P273Avoid release to the environment
- 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 |
|---|---|
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T,N |
| Risk statements (R) | 45-22-50/53 |
| 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 Hydrazobenzene used for?
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Hydrazobenzene (CAS 122-66-7) is used as a reactant in various chemical synthesis applications, including insertion reactions with organometallic complexes, reduction reactions, mechanistic studies of rearrangements, reactions with silylenes, and the synthesis of cluster complexes.
What is the CAS number and formula for Hydrazobenzene?
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The CAS number for Hydrazobenzene is 122-66-7, and its linear formula is C 6 H 5 NHNHC 6 H 5 .
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Hydrazobenzene typically as a technical or research grade chemical. We do not represent this product as USP, BP, or EP grade unless explicitly stated on the Certificate of Analysis.
What are the primary safety concerns when handling Hydrazobenzene?
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Hydrazobenzene is classified with danger signal words and hazard statements including H302 (Harmful if swallowed), H350 (May cause cancer), and H410 (Very toxic to aquatic life with long lasting effects). Appropriate personal protective equipment, such as eyeshields, gloves, and respiratory protection (e.g., N100 or P3 filters), is essential. Handle in a well-ventilated area and avoid release to the environment.
Is Hydrazobenzene a controlled substance?
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The provided data does not indicate that Hydrazobenzene (CAS 122-66-7) is a controlled substance. However, users should verify local regulations.
How is Hydrazobenzene packed and shipped?
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Hydrazobenzene is packed according to UN 3077, Class 9, Packing Group III regulations for transport, ensuring safe handling and international export compliance.
How can I request a quote or sample of Hydrazobenzene?
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To request a quote or a sample of Hydrazobenzene, please contact our sales team via the website or direct inquiry, providing your specific requirements and shipping details.
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