3-hydroxy-7a-methyl-1aH-naphtho[2,3-b]oxirene-2,7-dione

3-chloro-5-hydroxy-2-methylnaphthalene-1,4-dione

2-甲基萘

5,8-二羟基-2-甲基-1,4-萘醌

5,6-二羟基-2-甲基-1,4-萘醌