71610-28-1
2,3-dimethylchromene-4-thione
→
~47%
89047-22-3
N-(2,3-dimethylchromen-4-ylidene)hydroxylamine
108-95-2
苯酚
609-14-3
2-甲基乙酰乙酸乙酯
17584-90-6
2,3-dimethylchromen-4-one