Synonyms: Chainin(8CI); Oxacyclooctacosane, chainin deriv.;2-Butyl-16-methyl-3,5,7,9,11,13,15,26,27-nonahydroxyoctacosa-16,18,20,22,-24-pentaenoicacid 27-lactone; Stereoisomer of3-butyl-4,6,8,10,12,14,16,27-octahydroxy-17,28-dimethyloxacyclooctacosa-17,19,21,23,25-pentaen-2-one