Photoresist Chemicals Benzoic acid, 5-[[4-[[2-[4-[(3-carboxy-4-hydroxyphenyl)azo]phenyl]-1H-benzimidazol-5 -yl]azo]-6-sulfo-1-naphthalenyl]azo]-2-hydroxy- Cas：61624-99-5 Molecular Formula：C37H24N8O9S