Chan Kiang Lim, Shu Ying Gan, Vivien Yi, Mian Jong, Chee Onn Leong, Chun Wai Mai, Chin Fei Chee
Phytochemical investigation on the dichloromethane stem bark extract of Calophyllum castaneum resulted in the isolation of five compounds, namely isoblancoic acid (1), blancoic acid (2), euxanthone (3), friedelin (4) and friedelinol (5).
Chromanone acid
triterpene
xanthone
Calophyllum castaneum
cytotoxic activity.