2-ethyl-3,6,7-triisopropoxy-5,8-dimethoxynaphthalene-1,4-diol

2,3-二氯-5,8-二羟基-1,4-萘醌

3-ethyl-1,2,4-trimethoxybenzene

6,7-dichloro-2-hydroxynaphthazarin

2,5,8-trihydroxy-6,7-dichloro-3-ethyl-1,4-naphthoquinone