| Items | Specifications |
| Appearance | White or of- white powder or crystlline power,odorless |
| Solubility | Very soluble in N,N-Dimethylformamide,Soluble in methanol,Sparingly soluble inglacial acetic acid, Very slightly soluble inchloroform, Practically insoluble in water. |
| Melting Point | 152°C~156°C |

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