Item
Specification
Appearance
Almost colorless to yellow liquid
Identification
IR chromatograph conforms to the characteristic peak of R.S.
HPLC retention time should of sample should be concordant with that of reference standard.
Moisture
≤0.5%
Ignition residue
≤0.3%
Related substances
Max. Individual impurity≤0.5%
Total impurites≤1.0%
Residual solvent (GC)
Methanol≤3000ppm
Ethanol≤5000ppm
Acetone≤5000ppm
Methylene chloride≤600ppm
toluene≤890ppm
Purity (HPLC)
≥99%
Assay (HPLC)
98.0%~102. 0%
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