(4beta,7alpha,12alpha,14R)-7,12,14-Trihydroxy-15-oxo-kaur-16-en-18-al 91379-75-8 Kaur-16-en-18-al, 7,12,14-trihydroxy-15-oxo-, (4beta,7alpha,12alpha,14R)- Macrocalyxin C