Name:Diphenhydramine HCl
CAS NO:147-24-0
MF:C17H22ClNO
Characteristics:White crystalline powde
The detailed specifications are as below:
| Characteristics | White crystalline powder |
| Identification | Positive reaction |
| Solution | Conform to the requirements |
| Melting point | 168~172°C |
| Acidity | 4.0~6.0 |
| Appearance of solution | Conform to the requirements |
| Related substances | Conform to the requirements |
| Loss on drying | ≤0.5% |
| Absorbency | 12(253nm) |
| 15(258nm) | |
| 12(264nm) | |
| Sulphated ash | ≤0.1% |
| Assay | 99~101% |