Synonyms: Formamide,N-[(1E,4R,5R,9S,10S,11S)-11-[(2R,3S,5E,7E,11S,12S,13E,15R,17S,18S,19E,21R,23R,24R,25S,29S)-29-hydroxy-2,3,15,17,21,23-hexamethoxy-5,12,18,24-tetramethyl-9,27-dioxo-10,26-dioxabicyclo[23.3.1]nonacosa-5,7,13,19,28-pentaen-11-yl]-4,10-dimethoxy-5,9-dimethyl-6-oxo-1-dodecenyl]-N-methyl-(9CI); 10,26-Dioxabicyclo[23.3.1]nonacosane, formamide deriv.; Sphinxolide C