Diphenhydramine Hydrochloride CAS: 147-24-0
White crystalling powder, as pharmaceutical raw materials, mainly functions as relieving cough, dizzy-resisting and so on.
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| Item | Specifications |
| Appearance | White or off-white powder |
| Identification | A. A258nm/A253nm=1.1 A258nm/A253nm=1.1A258nm/A253nm |
| B: IRspectrum of the sample corresponds to that of reference standard. | |
| C: It gives the reactions of chlorides . | |
| Melting point | 167-172°C |
| Solubility | Very soluble in water, freely soluble in ethanol |
| Acidity or alkalinity | 0.5 mL of 0.01 M sodium hydroxide |
| Appearance of solution | Clear,NMT YNMT BY6 |
| Related substances | Impurity A NMT0.5% |
| Any other impurity NMT 0.3% | |
| Total impurities NMT 1.0% | |
| Loss on drying | NMT 0.5% |
| Sulfated ash | NMT 0.10% |
| Assay | 99.0%-101.0%(on anhydrous basis) |
Package: 25KG/drum.
Storage: in a dry and ventilated warehouse; keep away from sunshine; avoid fire; avoid moisture.
