A new cassane diterpenoid from the seed of Caesalpinia sappan. - Zhao, Yue-Lin; Jin, Yue; Han, Zi-Ying; Song, Wen-Han; Zhu, Hui-Lin; Zhang, Jian; Wang, Qian; Wang, Miao; Jiang, Xiao-Wen; Gao, Hui-Yuan (Journal of Asian Natural Products Research, 2025)