105537-47-1
ethyl 2-methyl-4,4-diethoxybutanoate
→
82426-93-5
3-肼基-4-甲基吡嗪
105537-87-9
4-methyl-4,5-dihydro-3(2H)-pyridazinone
33471-40-8
4-甲基-3(2H)-哒嗪酮
61892-47-5
3-甲基-4-羟基-4-丁内酯
68206-04-2
3-氯-4-甲基哒嗪