|
ITEMS
|
STANDARD
|
RESULTS
|
|
Appearance
|
A white or almost white crystalline powder
|
A white crystalline powder
|
|
Identification
|
A:IR
B:TLC
|
Complies
|
|
Solubility
|
Practically insoluble in water, slightly soluble in ethanol and in methylene chloride.
|
Complies
|
|
Melting point
|
About 220 °c
|
222°c
|
|
Specific optical rotation
|
+158°- +167°
|
+162.0°
|
|
Related
|
Any individual impurity
|
≤1.0%
|
0.26%
|
|
Total impurities
|
≤1.5%
|
0.67%
|
|
Not more than one impurity
|
≥0.5%
|
Complies
|
|
Loss on drying
|
≤0.5%
|
0.1%
|
|
Assay
|
97.0%-103.0%
|
100.1%
|
Description: A white or almost white,crystalline powder
Solubility: Practically insoluble in water,sparingly soluble in ethanol and in methylene chloride
Functional use: Mainly used as anti-inflammatory, anti-allergic, anti-toxin, the role of antibodies grams. Biochemical studies, adrenal cortex hormones drugs..
