Photoresist Chemicals Anthracenesulfonicacid, 5-amino-9,10-dihydro-6-methyl-8-[(4-methylsulfophenyl)amino]-9,10-dioxo-,disodium salt (9CI) Cas：83027-59-2 Molecular Formula：C22H18 N2 O8 S2 . 2 Na