62252-28-2
2-(2-ethoxy-2-oxoethyl)-5-nitrobenzoic acid
→
62252-29-3
4-chloro-3-ethoxy-7-nitroisochromen-1-one
3898-66-6
2-(Carboxymethyl)-5-nitrobenzoic acid
62252-30-6
7-amino-4-chloro-3-ethoxyisochromen-1-one