15,18-dimethyl-5-dioxo-14- oxapentacyclo[11.4.1.0^2,15^.0^4,13^.0^6,11^]octadeca-3,6,8,10-tetraene- 18-carbaldehyde

C₂₀H₁₈O₄

K. RavikumarB. SridharS. Venkat ReddyU. Sampath KumarJ. Madhusudana Rao

Acta Crystallographica Section E (2005) 61, 2 o494-o496

a=13.3078(19)Å   b=7.9299(11)Å   c=15.168(2)Å

α=90.00°   β=90.00°   γ=90.00°