2-[4,10-bis[2-[4-[(3R,6S,9S,12S,15R,20R,23S,26S,29S,32S)-15-[[(2S)-2-[[(2S)-2-[[(2S)-2-acetamido-5-carbamimidamidopentanoyl]amino]-5-carbamimidamidopentanoyl]amino]-3-naphthalen-2-ylpropanoyl]amino]-20-[[(2S)-1-amino-5-carbamimidamido-1-oxopentan-2-yl]carbamoyl]-6,26-bis(3-carbamimidamidopropyl)-9,23-bis[3-(carbamoylamino)propyl]-12,29-bis[(4-hydroxyphenyl)methyl]-2,5,8,11,14,22,25,28,31-nonaoxo-17,18-dithia-1,4,7,10,13,21,24,27,30-nonazabicyclo[30.3.0]pentatriacontan-3-yl]butylamino]-2-oxoethyl]-7-(carboxylatomethyl)-1,4,7,10-tetrazacyclododec-1-yl]acetate;gallium-67(3+)