5530-11-0
11-hydroxybenzo[b]xanthen-12-one
→
~55%
89140-90-9
6,11-dihydroxybenzo[b]xanthen-12-one
716-43-8
2-(2-甲氧基-2-氧代乙基)苯羧酸甲酯
89140-97-6
(6-acetyloxy-12-oxobenzo[b]xanthen-11-yl) acetate
89140-98-7
benzo[b]xanthene-6,11,12-trione