You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 4-amino-6-[4-[(1E)-1-(2-hydroxyethylamino)buta-1,3-dien-2-yl]-1-methylimidazol-2-yl]-5-methanimidoylpyridine-2-carboxamide;propane .
user
C20H29N7O2
assistant