Ethyl 2-[(2e)-2-[1-[2-[benzoyl-[2-[(5e)-3-cyano-5-[(2-ethoxycarbonylphenyl)hydrazinylidene]-4-methyl-2,6-dioxopyridin-1-yl]ethyl]amino]ethyl]-5-cyano-4-methyl-2,6-dioxopyridin-3-ylidene]hydrazinyl]benzoate
CAS No. 459856-74-7