2-庚炔乙酸二乙酯

对苯二甲醛缩四乙醇

5-(Anilinomethylene)-1,3-dimethyl-2,4,6(1H,3H,5H)-pyrimidinetrion e

3-(4-methoxyphenyl)quinazolin-4-one

N,N'-bis(2-fluorophenyl)methanimidamide