Estriol 50-27-1 雌三醇 C18H24O3 97.0~102.0% White Crystalline Powder

Estradiol 50-28-2 雌二醇 C18H24O2 98%min 白色或乳白色叶片状或针状结晶

EP5.0,white or almost white crystals,Assay 97%-103%

Melting point 116.0~121.0℃ Loss on drying ≤0.50% Specific Rotation -67.0°~-77.0° Related foreign steroids ≤2 Assay (HPLC) ≥98.0%

Appearance: white crystalline powder , no visible impurities Density : 1.085g/cm3 Melting point :171-177 Celsius Boiling Point : 413.139 Celsius at 760 mmHg Flash Point : 176.377 ° C Water solubility : practically insoluble Vapor Pressure : 0mmHg at 25 ° C

Purity: 98% Appearance: White or Almost White Crystalline Powder

Appearance: Nearly white crystalline powder, soluble in alcohol, insoluble Assay: 99%

4-Androstenedione 63-05-8 4-雄烯二酮 C19H26O2 99%min Off-white powder

Appearance: White to Light yellowish powder Solubility: Soluble to 100 mM in DMSO and to 50 mM in ethanol with gentle warming Storage：Store powder at -20 ºC for the stability of two years Purity: ≥98%

Appearance White or almost white crystalline powder Identification Positive Melting point 191°C ~195°C Absorbance(E1cm) 465~495 Specific Rotation +288°~ +298° Heay Metals ≤20 ppm Residue Solvents ≤0.2% Loss on drying ≤0.5% Residue On Ignition ≤0.1% Assay 98.0%~102.0% Related Substances Total ≤1.5% Single ≤0.5%

Content: ≥98.5％ Melting Point: 240.0~244.0℃ Packing: 1kg/foil bag Apperance: white crystalline powder Storage: shading, confined preservation.

Appearance : White Or Almost White Crystalline Powder Storage: Shading, confined preservation