23090-18-8
2-氧代-2H-吡喃-5-甲酰氯
→
~42%
18327-02-1
6-oxopyran-3-carbaldehyde
108461-92-3
N,N-Dimethyl-5-vinyl-2-pyrimidinamine
108444-56-0
5-乙烯基嘧啶-2-胺