Synonyms: 4-Benzoxazolecarboxylicacid,5-(methylamino)-2-[[3,9,11-trimethyl-8-[1-methyl-2-oxo-2-(1H-pyrrol-2-yl)ethyl]-1,7-dioxaspiro[5.5]undec-2-yl]methyl]-,[6S-[6a(2S*,3S*),8b(R*),9b,11a]]-; 1,7-Dioxaspiro[5.5]undecane, 4-benzoxazolecarboxylic acid deriv.; A23187; Antibiotic A 23187; Calcimycin; Calcium ionophore A 23187; Calimycin;Ionophore A 23187; [6S-[6a(2S*,3S*),8b(R*),9b,11a]]-5-(Methylamino)-2-[[3,9,11-trimethyl-8-[1-methyl-2-oxo-2-(1H-pyrrol-2-yl)ethyl]-1,7-dioxaspiro[5,5]undec-2-yl]methyl]-4-benzoxazolecarboxylicacid