China Ethinyl Estradiol 57-63-6, Find details about China Ethinyl Estradiol, 57-63-6 from Ethinyl Estradiol 57-63-6
| Items | Standards | Results |
| Characteristics | White or almost white crystalline powder | Complies |
| Identification | By IR | Complies |
| By UV | Complies | |
| Completeness of Solution | Clear and free from undissolved solid | Complies |
| Melting Range | 180.0ºC~186.0ºC | 182.0ºC~183.6ºC |
| Specific Rotation | -28.0º~-29.5º | -28.5º |
| Loss on Drying | ≤ 1.00% | 0.20% |
| Heavy Metals | ≤ 20ppm | Complies |
| Assay (HPLC basis on drying) | 97.0%~102.0% | 99.40% |
| Reference Standard | USP35 Standard | |
| Conclusion | The product complied to USP35 standard. | |
| Storage | Preserve in tight,light-resistant containers in a cool place | |