Molecular formula：(C6H5)2NH
Molecular weight：169.22
CAS NO：122-39-4
Structive formula：
Specification：Factor Standard(HG/T5534-2019)
Productquality index：
| item | index |
| appearance | White or light brown flakes or particles; colorless or light brown liquid; |
| Diphenylamine，w/% | ≧99.6 |
| low-boiling component，w/% | ≦0.3 |
| high-boiling component，w/% | ≦0.3 |
| Aniline，w/% | ≦0.1 |
| freezing point /℃ | ≧52.5 |
| water content，w/% | ≦0.2 |
| Alcohol insoluble solid，w/% | ≦0.05 |
| Water extract reaction | Neutral |