Synonyms: AC1L4V1Y;(3R,6S,9S)-3,6,9-tris[3-(hydroxyamino)propyl]-1,4,7,10,13,16-hexazacyclooctadecane-2,5,8,11,14,17-hexone;1,4,7,10,13,16-Hexaazacyclooctadecane-2,5,8,11,14,17-hexone, 3,6,9-tris(3-(hydroxyamino)propyl)-;3,6,9-Tris(3-(hydroxyamino)propyl)-1,4,7,10,13,16-hexaazacyclooctadecane-2,5,8,11,14,17-hexone