Characteristics: White or off-white powder Physical properties: Soluble in propylene glycol,sparingly soluble in water,ethanol and met…
Characteristics: White or off-white powder
Physical properties: Soluble in propylene glycol,sparingly soluble
in water,ethanol and methanol
Identification Infrared absorption: accord with standard
spectrum.
HPLC: The retention time of the major peak
corresponds to the standard.
Related substances Single impurity: ≤0.3%
Total impurities: ≤1.0%
Limit of iodide: ≤0.2%
Loss on drying: ≤1.0%
Residue on ignition :≤0.1%
Heavy metals :≤20ppm
Assay :98.0%~102.0%
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