product description
product name | estriol |
cas number | 50-27-1 |
molecular formula | c18h24o3 |
appearance | white or almost white crystalline powder |
assay(on dried basis) | 97.0~103.0% |
solubility |
practically insoluble in water, sparingly soluble in ethanol (96% per cent) |
identification |
ir: meets the requirements tlc: meets the requirements |
loss on drying | ≤ 0.5% |
specific rotation |
+60°~+64° |
particle size |
≤30μm |
company information