6-hydroxy-5,7,8-trimethyl-2-phenyl-1-benzopyrylium chloride

3-氰基-3-羟基丁酸乙酯

(1S,2R)--2-羟基环己腈

1-(4-chloroanilino)cyclopentane-1-carbonitrile

2,2-bis(dimethylamino)propanedinitrile