137109-46-7 4H-Benzo(d)naphtho(2,3-b)pyran-7,12-dione, 3,4b,5,12b-tetrahydro-3,4,8,10-tetrahydroxy-2-(hydroxymethyl)-5,5-dimethyl-, (3R-(3alpha,4beta,4aalpha,12balpha))- Naphthgeranine D