5020-35-9
→
21657-71-6
4a,4b,8a,8b-tetrahydrobiphenylene
80409-75-2
(3aR,7aS)-2,2-dimethyl-3a,7a-dihydrobenzo[d][1,3]dioxole
17793-95-2
顺-1,2-二氢儿茶酚