Photoresist Chemicals b-Alanine, N-[[4,7-bis(4-methoxyphenyl)[1,2,5]oxadiazolo[3,4-c]pyridin-6-yl]carbon yl]-, 2,5-dioxo-1-pyrrolidinyl ester Cas：921934-98-7 Molecular Formula：C27H23N5O8