Synonyms: Dispiro[oxepin-2(3H),4'-[4H-5,6,8b]triazaacenaphthylene-7'(5'H),2''-[2H]pyran]-8'-carboxylicacid, 7-ethyl-1',2',2'a,3',3'',4,4'',5'',6'',7,8',8'a-dodecahydro-8'a-hydroxy-6''-methyl-,16-[(4-amino-2-hydroxybutyl)(3-aminopropyl)amino]-16-oxohexadecyl ester,[2'aS-[2'aa,4'a(R*),7'a(S*),8'b(R*),8'aa]]-; Crambescidin 816;Crambescidine 816