Photoresist Chemicals 1,8-Naphthyridin-2(1H)-one, 1-cycloheptyl-3-(1,1-dioxido-2H-1,2,4-benzothiadiazin-3-yl)-4-hydroxy-, monosodium salt Cas：686265-16-7 Molecular Formula：C22H22N4O4S.Na