methyl 2,2-difluoro-1,3-benzodioxole-4-carboxylate

N,N-dimethyl-9H-fluoren-9-amine

tetramethyl perylene-3,4,9,10-tetracarboxylate

4'-氯-5-甲氧基-3-联苯乙酸甲酯

4-methoxy-2,3,6-trimethylphenol