| Testing Items | Specifications |
| Appearance | Off-white to beige powder |
| Extinction Value(10ppm solution at 311nm in Ethanol) | Not less than 1470 |
| Loss on Drying | Not more than 0.5% |
| Melting Point | 92.0℃ ~ 102.0℃ |
| Assay(HPLC) | Not less than 97.00% |
| Ethylhexanol | Not more than 200ppm |
| Toluene | Not more than 890ppm |
| Cyclohexane | Not more than 3880ppm |