ethyl 3,5-dimethyl-1-phenylpyrazole-4-carboxylate

3-甲基戊烯二酸二乙酯

1,3-bis[2-(3,4-dimethoxyphenyl)ethyl]urea

ethyl 2,4-dimethyl-5-nitro-6-oxopyran-3-carboxylate

5-hydroxy-1-methoxy-3-methylanthracene-9,10-dione