Molekula
N,N-Diphenylbenzidine
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
N,N-Diphenylbenzidine is an organic compound primarily used as an analytical and redox reagent, for example as a redox indicator and in tests for nitrate, nitrite and oxidizing agents. It is also employed in the manufacture of certain polymers and as a chemical reagent in analytical applications. This solid compound has a CAS number of 531-91-9, a molecular formula of 4-(C6H5NH)C6H4C6H4-4-(NHC6H5), and a molecular weight of 336.43 g/mol. It is stable at ambient storage conditions but requires careful handling, as indicated by its warning signal word. Molekula supplies N,N-Diphenylbenzidine from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
-
10 g — £95.50 per pack ex VAT · £114.60 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Solid |
| Identification | Conforms to reference |
| Assay | ≥99.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90034190 |
| CAS Number | 531-91-9 |
| IUPAC Name | 4-(4-anilinophenyl)-N-phenylaniline |
| EC Number | 208-521-7 |
| Molecular Formula | 4-(C6H5NH)C6H4C6H4-4-(NHC6H5) |
| Molecular Weight | 336.43 |
| Exact Mass | 336.1626 |
| SMILES | C1=CC=C(C=C1)NC2=CC=C(C=C2)C3=CC=C(C=C3)NC4=CC=CC=C4 |
| InChIKey | FDRNXKXKFNHNCA-UHFFFAOYSA-N |
| InChI | InChI=1S/C24H20N2/c1-3-7-21(8-4-1)25-23-15-11-19(12-16-23)20-13-17-24(18-14-20)26-22-9-5-2-6-10-22/h1-18,25-26H |
| PubChem CID | 68280 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2921.59.8090 |
| Tariff Code | 2921599090 |
Safety & GHS
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
Hazard statements
- H302 + H312 + H332 Harmful if swallowed, in contact with skin or if inhaled
- H351 Suspected of causing cancer
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- (1,1'Biphenyl)4,4'diamine, N4,N4'diphenyl
- [1,1'-Biphenyl]-4,4'-diamine, N,N'-diphenyl-
- 4,4'-Dianilinobiphenyl
- 4,4'Bis(phenylamino)1,1'biphenyl
- Benzidine, N,N'-diphenyl-
- Diphenylbenzidine
- FDRNXKXKFNHNCA-UHFFFAOYSA-N
- N(4),N(4')-Diphenyl-biphenyl-4,4'-diamine
- N4,N4'-Diphenyl-[1,1'-biphenyl]-4,4'-diamine
- N4,N4'Diphenyl4,4'diamine
Frequently asked questions
What is N,N-Diphenylbenzidine commonly used for?
N,N-Diphenylbenzidine is primarily used as an analytical and redox reagent, for example as a redox indicator and in tests for nitrate, nitrite and oxidizing agents. It is also used in the production of certain types of polymers and in the synthesis of organic light-emitting diodes (OLEDs).
What is the molecular formula and molecular weight of N,N-Diphenylbenzidine?
The molecular formula is 4-(C6H5NH)C6H4C6H4-4-(NHC6H5) and the molecular weight is 336.43 g/mol.
What is the recommended storage condition for N,N-Diphenylbenzidine?
Store N,N-Diphenylbenzidine at ambient temperature in a cool, dry place, away from direct sunlight and incompatible substances.
What grades or purity levels of N,N-Diphenylbenzidine does Molekula supply?
Molekula supplies N,N-Diphenylbenzidine in technical and reagent grades, with purity levels typically ≥98%.
Can Molekula supply N,N-Diphenylbenzidine in bulk quantities?
Yes, Molekula can supply N,N-Diphenylbenzidine in bulk, with quantities tailored to your specific requirements.
What documentation comes with an order of N,N-Diphenylbenzidine?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a product specification sheet.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.