921609-23-6
2,8-dimethyl-5-nitrochromen-4-one
→
921609-24-7
8-(dibromomethyl)-2-methyl-5-nitrochromen-4-one
921609-25-8
2-methyl-5-nitro-4-oxochromene-8-carbaldehyde
921609-29-2
8-formyl-2-methyl-4-oxochromene-5-carbonitrile