Description
Technical Parameters
Product Brief Introduction
Product name:Betamethasone Valerate<br>
CAS:2152-44-5<br>
MF:C27H37FO6<br>
MW:476.578<br>
Product Specification
|
Item |
Specification |
|
Appearance |
White or off-white crystalline powder |
| Identification |
A.Infrared Absorption: <197M> |
|
Thin-Layer: Chromatographic Identification test <201> |
|
|
Solubility |
Practically insoluble in water, freely soluble in acetone and in methylene chloride, soluble in ethanol |
|
Specfic rotation |
+75.0°- +82.0° |
|
Melting point |
186℃-196℃ |
|
Particle size |
100% ≤ 20 μm, 90% ≤ 10 μm |
|
Loss on drying |
≤0.5% |
|
Residue on ignition |
≤0.2% |
|
Heavy metals |
≤20ppm |
|
Any individual impurity |
≤1.0% |
|
Total impurities |
≤2.0% |
|
Residual Solvents
|
Acetone ≤5000ppm |
|
Methanol ≤3000ppm |
|
|
THF ≤720ppm |
|
|
Pyridine ≤200ppm |
|
|
Assay (HPLC) |
97.0%-103.0% |
