Estradiol
CAS No.: 50-28-2
Product Name: Estradiol
CAS#50-28-2
Package: 1kg/bag
Delivery time: in stock for prompt shipment.
Dangerous goods or not: Not
Country of origin: China
CAS#50-28-2
Package: 1kg/bag
Delivery time: in stock for prompt shipment.
Dangerous goods or not: Not
Country of origin: China
Description
Spec of Estradiol :
| Items | Specification | Results |
| Description | White or almost white powder | conforms |
| Identification | UV：Absorptivities at 239nm,calculated on the dried basis,do not differ by more than 3.0%. | 1.8% |
| IR：The infrared absorption spectrum of this product should be consistent with that of the reference standard. | conforms | |
| Melting range | Samples were tested 16 hours after vacuum drying of silica gel,between 173℃and 179℃ | 177.8～178.5℃ |
| Specific Rotation | Between +76°and +83°(in dioxane) | +79.7° |
| Water(K.F.) | Not more than 3.5% | 3.3% |
| Maximum single | Not more than 0.5% | 0.04% |
| Total impurity | Not more than 1.0% | 0.06% |
| Assay | Between 97.0% and 103.0%(on dried basis) | 99.5% |
