Description
Technical Parameters
Product Brief Introduction
Product name: Clemastine fumarate
CAS: 14976-57-9
MF: C25H30ClNO5
MW: 459.96
Product Specification
|
Appearance |
White to off-white crystalline powder |
|
Identification |
The principal spot obtained from the Test preparation corresponds in RF value,color, and intensity to that obtained from the Standard preparation |
|
Infrared absorption spectrophotometry conforms with the reference spectrum |
|
|
Solubility |
Slightly soluble in methanol,very slightly soluble in water and trichloromethane |
|
Clarity and Color of Solution |
The test solution is colorless or not more intensely colored than Color matching fluid |
|
Specific Rotation |
+15.0°-+18.0° |
|
PH |
3.2-4.2 |
|
Loss on Drying |
≤ 0.5% |
|
Related Substances |
Single impurity ≤ 0.5% |
|
Total impurity ≤ 1.0% |
|
|
Heavy Metals |
≤ 20ppm |
|
Assay (on anhydrous basis) |
98.0%~102.0% |
