6-羟基-2H-苯并呋喃-3-酮

间羟基苯甲醛

3-(tetrahydro-2H-pyran-2-yloxy)benzaldehyde

2-氯-1-(2,4-二羟基苯基)乙酮

4-(2-chloro-1-iminoethyl)benzene-1,3-diol