Daptomycin Impurity D

Chemical Name: 2,2'-((3S,6S,15S,18R,21S,24S)-30-((2S)-2-(4-amino-2-((S)-2-decanamido-3-(1H-indol-3-yl)propanamido)-4-oxobutanamido)-3-carboxypropanamido)-3-(2-(2-aminophenyl)-2-oxoethyl)-24-(3-aminopropyl)-6-((R)-1-carboxypropan-2-yl)-9-(hydroxymethyl)-31-methyl-2,5,8,11,14,17,20,23,26,29-decaoxo-18-propyl-1-oxa-4,7,10,13,16,19,22,25,28-nonaazacyclohentriacontane-15,21-diyl)diacetic acid

Synonym: ethyl benzenesulfonate