Chemical Name: 4,20-Dioxa-3,19-disilaheneicos-14-en-7-one, 9-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-5-(2-hydroxyethyl)-2,2,3,3,6,6,8,10,14,19,19,20,20-tridecamethyl-17-[(1E)-1-methyl-2-(2-methyl-4-thiazolyl)ethenyl]-, (5S,8R,9S,10S,14Z,17S)- (9CI); 4,20-Dioxa-3,19-disilaheneicos-14-en-7-one, 9-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-5-(2-hydroxyethyl)-2,2,3,3,6,6,8,10,14,19,19,20,20-tridecamethyl-17-[1-methyl-2-(2-methyl-4-thiazolyl)ethenyl]-, [5S-[5R*,8S*,9R*,10R*,14Z,17R*(E)]]-; (3S,6R,7S,8S,12Z,15S,16E)-3,7,15-Tris[[(1,1-dimethylethyl)dimethylsilyl]oxy]-1-hydroxy-4,4,6,8,12,16-hexamethyl-17-(2-methyl-4-thiazolyl)-12,16-heptadecadien-5-one