Prednisolone-21-acetate CAS NO.52-21-1

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1.Product description
Product Name: Prednisolone-21-acetate
CAS: 52-21-1
MF: C23H30O6
MW: 402.48
EINECS: 200-134-1

2.Physical properties
Appearance:white crystalline powder
Density:1.28 g/cm3
Melting Point:240-244 °C
Boiling Point:579.8 °C at 760 mmHg
Flash Point:198.4 °C
Stability: Stable. Incompatible with strong oxidizing agents.

3.Specification
Character
White or almost white crystallin powder
Specific rotation
+112°~+119°

Identification
1) Complies by IR：Conforms
2) Complies by UV not more than 2.5%：1.2%
3) Positive reaction:Conforms
Chromatographic purity
Principal impurity not more than 1.0%"0.32%
Total impurities not more than 2.0%:0.69%
Methanol≤3000ppm
Pyridine≤200ppm
Loos on drying:Not more than 1.0%
Assay:Contains 97.0% to 102.0% of C23H306 calculated on dried basis