(2S,4R)-N-((1S,2S)-2-chloro-1-((2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(methylthio)tetrahydro-2H-pyran-2-yl)propyl)-1-(methyl-13C-d3)-4-propylpyrrolidine-2-carboxamide hydrochloride,(2S,4R)-N-((1S,2S)-2-chloro-1-((2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(methylthio)tetrahydro-2H-pyran-2-yl)propyl)-1-(methyl-13C-d3)-4-propylpyrrolidine-2-carboxamide hydrochloride,"Labeled Clindamycin, intended for use as an internal standard for the quantification of Clindamycin by GC- or LC-mass spectrometry.",Clindamycin Stable Isotopes