英文别名9-Norketo FK-506; 9-Norketo Tacrolimus; Tacrolimus Impurity 22; Tacrolimus Impurity 31; (1R,8S,11S,12R,13S,16R,17E,20S,22S,23R,24R,26R)-1,13-Dihydroxy-11-[(E)-1-[(1R,3S,4R)-4-hydroxy-3-methoxycyclohexyl]prop-1-en-2-yl]-22,24-dimethoxy-12,18,20,26-tetramethyl-16-prop-2-enyl-10,27-dioxa-3-azatricyclo[21.3.1.03,8]heptacos-17-ene-2,9,15-trione; (1R,8S,11S,12R,13S,16R,17E,20S,22S,23R,24R,26R)-16-allyl-1,13-dihydroxy-11-[(E)-2-[(1R,3S,4R)-4-hydroxy-3-methoxy-cyclohexyl]-1-methyl-vinyl]-22,24-dimethoxy-12,18,20,26-tetramethyl-10,27-dioxa-3-azatricyclo[21.3.1.03,8]heptacos-17-ene-2,9,15-trione; (3S,4R,5S,8R,9E,12S,14S,15R,16R,18R,19R,25aS)-5,19-Dihydroxy-3-{(1E)-1-[(1R,3S,4R)-4-hydroxy-3-methoxycyclohexyl]prop-1-en-2-yl}-14,16-dimethoxy-4,10,12,18-tetramethyl-8-(prop-2-en-1-yl)-3,4,5,6,8,11,12,13,14,15,16,17,18,19,23,24,25,25a-octadecahydro-15,19-epoxypyrido[2,1-c][1,4]oxazacyclodocosine-1,7,20(22H)-trione 
