52438-71-8
2-ethoxy-3,4-dihydro-6-methyl-2H-Pyran
→
~39%
29393-32-6
5-acetyloxolan-2-one
3128-06-1
5-氧代己酸
~29%
3740-59-8
3,4-二氢-6-甲基-2H-吡喃-2-酮
69378-41-2
4-bromo-5-oxo-hexanoic acid