378-44-9 Betamethasone 9alpha-fluoro-16beta-methylprednisolone
Name | Betamethasone | |
Molecular Formula | C22H29FO5 | |
Molecular Weight | 392.461 | |
CAS Registry Number | 378-44-9 | |
density | 1.3±0.1 g/cm3 | |
Appearance | white powder | |
EINECS | 206-825-4 | |
Category | API |
Test Item |
Specifications |
Results |
Description |
A white or almost white,crystalline powder |
White crystalline powder |
Identification |
A.B.C.D.E.F |
Positive |
Specific Rotation |
+75~+82 |
+78 |
Loss on drying |
≤0.5% |
0.16% |
Residue on ignition |
≤0.2% |
0.06% |
Relative substance |
Single not more than 1.0%Total not more than 2.0% |
0.8%1.6% |
Assay |
97.0%~103.0% |
98.80% |
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