N,N′-Diphenyl-p-phenylenediamine
N,N′-Diphenyl-p-phenylenediamine (CAS 74-31-7), with the linear formula C6H5NHC6H4NHC6H5 and a molecular weight of 260.33 g/mol, is a secondary amine. It is recognised for its utility as a monomer in polymer science and materials development. This compound is primarily employed in applications requiring specific chemical functionalities offered by its diamine structure, contributing to advanced material synthesis and research.
- IUPAC
- N,N′-Diphenyl-1,4-phenylenediamine
- Synonyms
- C6H5NHC6H4NHC6H5N,N′-Diphenyl-1,4-phenylenediamine

Monomer for Polymer Synthesis
N,N′-Diphenyl-p-phenylenediamine serves as a valuable monomer in the synthesis of various polymers. Its difunctional amine groups allow for incorporation into polymer backbones, influencing material properties such as thermal stability and mechanical strength.
Materials Science Research
This diamine is utilized in materials science for developing novel materials with specific electronic or optical properties. Its structure is conducive to creating polymers and organic compounds for advanced technological applications.
Intermediate in Organic Synthesis
As a substituted phenylenediamine, it can act as an intermediate in complex organic synthesis pathways. It is employed in the creation of more intricate molecules for research and development purposes.
| Molecular weight | 260.33 |
|---|---|
| Linear formula | C6H5NHC6H4NHC6H5 |
| Assay | 98% |
| Boiling point | 220-225 °C/0.5 mmHg(lit.) |
| Melting point | 143-145 °C(lit.) |

Hazard statements
- H317May cause an allergic skin reaction
- H412Harmful to aquatic life with long-lasting effects
Precautionary statements
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 43-52/53 |
| Safety statements (S) | 24-37-61 |
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 N,N′-Diphenyl-p-phenylenediamine used for?
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N,N′-Diphenyl-p-phenylenediamine is primarily used as a monomer in polymer synthesis and in materials science research due to its diamine structure.
What is the CAS number and formula for N,N′-Diphenyl-p-phenylenediamine?
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The CAS number is 74-31-7 and the linear formula is C6H5NHC6H4NHC6H5.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies N,N′-Diphenyl-p-phenylenediamine with an assay of 98%. This product is supplied for research and industrial purposes and is not represented as USP, BP, EP, or pharmaceutical grade.
How should N,N′-Diphenyl-p-phenylenediamine be handled?
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Handling requires appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, faceshields, and gloves. Avoid skin contact and inhalation, as it may cause an allergic skin reaction (H317) and is harmful to aquatic life with long-lasting effects (H412).
Is N,N′-Diphenyl-p-phenylenediamine suitable for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including N,N′-Diphenyl-p-phenylenediamine, adhering to international shipping regulations.
How can I request a quote or sample?
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To request a quote or sample of N,N′-Diphenyl-p-phenylenediamine, please contact our sales team through the website or by phone, providing your specific requirements.
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