Octreotide Impurity 61

L-Lactyl adduct of Octreotide (at Phe) ; (4R,7S,10S,13R,16S,19R) -13- ((1H-indol-3-yl) methyl) -10- (4-aminobutyl) -16-benzyl-N- ((2R,3R) -1,3-dihydroxybutan-2-yl) -7- ((R) -1-hydroxyethyl) -19- ((R) -2- ((S) -2-hydroxypropanamido) -3-phenylpropanamido) -6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carboxamide