57-24-9 NCIStruc2_000542 PDSP2_000441 NCIStruc1_001823 MEGxp0_001768 C06522 ST057252 (−)-Strychnine 45661_RIEDEL SBB006463 BB_NC-0734 InChI=1/C21H22N2O2/c24-18-10-16-19-13-9-17-21(6-7-22(17)11-12(13)5-8-25-16)14-3-1-2-4-15(14)23(18)20(19)21/h1-5,13,16-17,19-20H,6-11H S0532_SIGMA CHEBI:28973