126688-54-8 Butanoic acid, 2(or 3)-methyl-, 3-(8-(2-aminoethyl)-10-(3-ethyl-3,6-dihydro-6-oxo-2H-pyran-2-yl)-5,8-dihydroxy-7-(phosphonooxy)-1,3,9-decatrienyl)cyclohexyl ester Phosphazomycin C Phosphazomycin C complex