108-89-4
4-甲基吡啶
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878-00-2
4-乙酰氧基苯甲醛
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2298-21-7
[4-[(E)-2-pyridin-4-ylethenyl]phenyl] acetate
108-24-7
乙酸酐
123-08-0
对羟基苯甲醛
67882-97-7
(E)-4-(4-羟基苯乙烯)吡啶