19480-04-7
6-oxoheptanal
→
84375-05-3
2,6-dioxoheptanoic acid
81328-61-2
2-Methylcyclopent-1-ene-1-carboxaldehyde
67209-77-2
(6ci,9ci)-2-甲基-1-环戊烯-1-羧酸