| Properties: | white, green-white or yellow-white fine acicular or flaky crystal or crystalline powder |
| Solubility: | slightly soluble in water, easily soluble in 96% ethyl alcohol and propylene glycol, slightly soluble in diethyl ether |
| Melting point: | 149-153℃ |
| Specific rotation: | [a]25000- +5.5 ℃ |
| Content: | 99-102% |
| Identification: | infrared spectrum is in accordance with contrast spectrum |
| Drying loss: | 100-105 drying to constant weight, weight loss ≤0.5% |
| Ash content of sulfuric acid: | ≤0.1% |
| Chloride: | ≤100PPM |
| Packing: | (middle 37x48cm) fiber drum lined with plastic bag, net weight 25kg. |
| Uses: | Antimicrobial drug. |
