Specification:
TEST ITEMS |
STANDARD PRESCRIBE |
TEST RESUET |
|
Appearance |
Greyish white to brown powder |
Almost white powder |
|
Identification |
IR |
Creyish white to brown powder |
Complies |
UV |
Maxinum absorption wavelngth at280 nm;about0.97 Maximun absorption wavelength at 335 nm;about 0.59 |
Complies |
|
Melting point |
About 175°C |
176-177°C |
|
Assay |
98.0%-101.0% Calculated on the dry bass |
99.5% |
|
Loss on drying |
≤0.5% |
0.1% |
|
TLC Related substances |
Total impuntles: ≤1.0% Individual specifled impurity: ≤0.5% Not more than 3 impurities equal to or greater than 0.2 Unspecifled impurity: ≤0.2% |
TOTAL:<1.0% Absent 0 |
|
Particle size |
95%<45μm |
95%<27μm |
|
Residual sovent |
Metanol: ≤1000ppm Toluene: ≤890ppm Acetone: ≤1000ppm |
Metanol:33ppm Toluene:6ppm Acetone:218ppm |
|
Conclusion |
The product meets the specification |
Packaging details:
Packaging details: |
25kg/drum with double plastic bags inside; packed in a cardboard drum or fiber HDPE drum. |
Storage: |
Stored in a clean, cool, dry area; keep away from moisture and strong, direct light/heat |
Shelf Life: |
5 years if sealed and store away from direct sun light. |