Assay of semi-synthetic codeine base with simultaneous determination of alpha-codeimethine and O6-codeine methyl ether as by-product impurities by high-performance liquid chromatography.
Ayyangar
N R
NR
National Chemical Laboratory, Pune, India.
Bhide
S R
SR
Kalkote
U R
UR
D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D003061:Codeine / Q000031:analogs & derivatives* / Q000032:analysis*; D009020:Morphine / Q000032:analysis
C067909:alpha-codeimethine; C067908:O(6)-codeine methyl ether; D009020:Morphine; D003061:Codeine