Product Brief Introduction
Product name: Nystatin
CAS：1400-61-9
MF: C47H75NO17
MW: 276.414
Product Specification
|
Item |
Specification |
|
Appearance |
Yellow or slightly brownish powder |
|
Identification |
IR: The infrared absorption spectrum of the sample complies with the reference standard. |
|
HPLC:The retention time of the major peak of the sample solution corresponds to that of the standard solution, as obtained in the assay. |
|
|
A291/A305nm: 0.61-0.73 |
|
|
A319/A305nm: 0.83-0.96 |
|
|
A230/A280nm: 0.83-1.25 |
|
|
Colour reaction: A brown colour develops |
|
|
Colour reaction: A brown colour develops that becomes violet on standing |
|
|
Absorbance (at 305nm) |
≥ 0.60 |
|
Solubility |
Practically insoluble in water, freely soluble in imethylformamide and in dimethyl sulfoxide, slightly. Soluble in methanol, practically insoluble in ethanol (96%) |
|
PH(3% aqueous solution) |
6.0~8.0 |
|
Loss on Drying |
≤ 5.0% |
|
Sulphated Ash |
≤ 3.5% |
|
Related Substances |
Single impurity≤ 4.0% |
|
Nystatin A1 |
≥ 85.0% |
|
Assay (Potency) |
≥ 4400IU/mg |
