Item Specifications Results
Appearance White or off-white crystalline powder White crystalline powder
Identification The IR spectrogram conforms to the Complies
HPLC characteristic peak of R.S.
The maximum absorption should be In Complies
The retention time of the major peak in the Complies
MP 248.6℃-252.3 ℃ Complies
Residual solvents Methylene chloride ≤600ppm Complies
Ethanol≤5000ppm
Acetone≤410ppm
Hexane≤290ppm
DMF≤880ppm
THF≤720ppm
Heavy metals ≤10ppm Complies
Assay ≥90%(a and b) 94.87%
Conclusion The results conforms with Enterprise standards
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