methyl 3-[10,15-diethenyl-20-(3-methoxy-3-oxopropyl)-5,9,14,19-tetramethyl-21,22,23,24-tetraazapentacyclo[16.2.1.13,?.1?,11.113,1?]tetracosa-1,3,5,7,9,11(23),12,14,16,18(21),19-undecaen-4-yl]propanoate; CAS No.: 1698028-11-3 This chemical is characterized by its stability and specific reactivity. It is primarily used in the pharmaceutical industry for the synthesis of active pharmaceutical ingredients.