N,N'-Diphenyl benzidine, GR 99%
N,N'-Diphenyl benzidine, GR 99% (CAS 531-91-9) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-000387.
About N,N'-Diphenyl benzidine, GR 99%
N,N'-Diphenyl benzidine, GR 99% sits in our indicators, Chelating Agents & Test Papers section and ships worldwide from stock or short lead time. Key data (AR): CAS 531-91-9, formula C24H20N2 and molar mass 336.4 g/mol. Typical appearance is white to green to beige and faint grey to grey solid.
Common uses in the lab and plant
- Titration end-point detection
- pH determination
- Analytical testing
- Organic synthesis
Storage and safety notes
Literature values: melting point 246-248 °C and density 1.17 g/cm3. Solubility: insoluble in water. It carries the GHS signal word Warning (H302, H312, H332 and H351), so wear gloves and eye protection and work with good ventilation.
Order it in 1 g, 5 g, 10 g, 25 g and 100 g packs or ask for a bulk quotation. Each lot travels with a batch certificate of analysis and a 16-section SDS. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.
Typical uses
- Titration end-point detection
- pH determination
- Analytical testing
- Organic synthesis
Applications
Grade guides
Specifications and identifiers
| Product name | N,N'-Diphenyl benzidine, GR 99% |
|---|---|
| Catalogue number | ZX-000387 |
| CAS number | 531-91-9 |
| IUPAC name | 4-(4-anilinophenyl)-N-phenylaniline |
| Molecular formula | C24H20N2 |
| Molar mass | 336.4 g/mol |
| Exact mass | 336.1626 |
| Grade | AR |
| Purity / assay | ≥99% |
| Physical form | Solid |
| Appearance | White to green to beige and faint grey to grey solid |
| Melting point | 246-248 °C |
| Density | 1.17 g/cm3 |
| Solubility | Insoluble in water |
| XLogP3 | 6.6 |
| H-bond donors / acceptors | 2 / 2 |
| Topological polar surface area | 24.1 Ų |
| HS code | 29215990 |
| InChIKey | FDRNXKXKFNHNCA-UHFFFAOYSA-N |
| SMILES | C1=CC=C(C=C1)NC2=CC=C(C=C2)C3=CC=C(C=C3)NC4=CC=CC=C4 |
| PubChem CID | 68280 |
| Synonyms | Diphenylbenzidine, N,N'-Diphenylbenzidine, N4,N4'-Diphenyl-[1,1'-biphenyl]-4,4'-diamine, Benzidine, N,N'-diphenyl-, [1,1'-Biphenyl]-4,4'-diamine, N,N'-diphenyl-, N,N-Diphenylbenzidine, (1,1'-Biphenyl)-4,4'-diamine, N,N'-diphenyl-, N(4),N(4')-Diphenyl-biphenyl-4,4'-diamine, Benzidine, N,N'diphenyl, N4,N4'Diphenyl4,4'diamine, Benzidine, N,N'diphenyl (8CI), Benzidine, N,N'-diphenyl-(8CI) |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Warning
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H332Harmful if inhaled
- H351Suspected of causing cancer
Precautionary statements P203, P261, P264, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P317, P318, P321, P330, P362 + P364, P405, P501
Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 1 g | Quoted on request | |
| 5 g | Quoted on request | |
| 10 g | Quoted on request | |
| 25 g | Quoted on request | |
| 100 g | Quoted on request | |
| 1 kg | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
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