(17R,23S)-23-(2-amino-2-oxoethyl)-10,30-dichloro-N-[(1S)-1-[3,5-dihydroxy-2-(2-hydroxyphenyl)-4-methylphenyl]-2-oxopropyl]-35-[(6R)-3-[(6S)-4-(dimethylamino)-5-hydroxy-4,6-dimethyloxan-2-yl]oxy-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-13,27-dihydroxy-17-methyl-26-[[4-methyl-2-(methylamino)pentanoyl]amino]-16,19,22,25-tetraoxo-2,8-dioxa-15,18,21,24-tetrazatetracyclo[26.2.2.29,12.13,7]pentatriaconta-1(30),3(35),4,6,9,11,28,31,33-nonaene-14-carboxamide;molecular iodine