ascomycin and its Impurities
Ascomycin, also called Immunomycin, is an ethyl analog of tacrolimus with strong immunosuppressant properties. It is produced by the fermentation of Streptomyces hygroscopicus.. Reference standards of Ascomycin API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below
(3S,4R,5S,8R,12S,14S,15R,16S,18R,19R,26aS,E)-5,19-Dihydroxy-3-((E)-1-((1R,3R,4R)-4-hydroxy-3-methoxycyclohexyl)prop-1-en-2-yl)-14,16-dimethoxy-4,8,10,12,18-pentamethyl-5,6,8,11,12,13,14,15,16,17,18,19,24,25,26,26a-hexadecahydro-3H-15,19-epoxypyrido[2,1-c][1]oxa[4]azacyclotricosine-1,7,20,21(4H,23H)-tetraone
(3S,4R,5S,8R,12S,14S,15R,16S,18R,19R,26aS,E)-5,19-Dihydroxy-3-((E)-1-((1R,3R,4R)-4-hydroxy-3-methoxycyclohexyl)prop-1-en-2-yl)-14,16-dimethoxy-4,8,10,12,18-pentamethyl-5,6,8,11,12,13,14,15,16,17,18,19,24,25,26,26a-hexadecahydro-3H-15,19-epoxypyrido[2,1-c][1]oxa[4]azacyclotricosine-1,7,20,21(4H,23H)-tetraone
Catalogue No.:PA 01 0761000
CAS :
104987-09-9
Molecular Formula : C42H67NO12
Molecular Weight : 777.99
