1960 年 80 巻 10 号 p. 1357-1361
It was concluded that serpentinine, isolated from Rauwolfia serpentina BENTH., is not an inseparable mixture of two bases but a homogeneous substance which has a double molecular formula, C42H44O6N4, rather than C21H22O3N2, and contains two chromophores of tetrahydro-β-carboline and quaternary β-carboline.