4-甲基戊酸酐

1,4-二乙酰基-2,3-二氰苯

acetic acid,4,6,8-trimethoxynaphthalen-1-ol

N-[5-[[(2-oxo-1,3-oxazolidin-3-yl)amino]methylidene]furan-2-ylidene]acetamide

2-acetyloxysulfonylacetic acid