⁓[100:1] (w/w) mixture of cyclosporine and cyclosporine Impurity-U;
Cyclosporine STD : ([R-[R*,R*-(E)]]-Cyclic(L-alanyl-D-alanyl-N-methyl-L-leucyl-N-methyl-L-leucyl-N-methyl-L-valyl-3hydroxy-N,4-dimethyl-L-2-amino-6-octenoyl-L-α-aminobutyryl-N-methylglycyl-N-methyl-L-leucyl-Lvalyl-N-methyl-L-leucyl)) (3S,6S,9S,12R,15S,18S,21S,24S,30S,33S)-30-ethyl-33-[(E,1R,2R)-1-hydroxy-2-methylhex-4-enyl]-1,4,7,10,12,15,19,25,28-nonamethyl-6,9,18,24-tetrakis(2-methylpropyl)-3,21-di(propan-2-yl)-1,4,7,10,13,16,19,22,25,28,31-undecazacyclotritriacontane-2,5,8,11,14,17,20,23,26,29,32-undecone
&Cyclosporine Impurity-U: (Cyclo[[(E)-(2S,3R,4R)-3-hydroxy-4-methyl-2-(methylamino)oct-6-enoyl]-L-2-aminobutyryl-Nmethylglycyl-N-methyl-L-leucyl-L-valyl- L-leucyl-L-alanyl-D-alanyl-N-methyl-L-leucyl-N-methyl-Lleucyl-N-methyl-L-valyl])
