1.0 2026-09-22 22:40:43 UTC 2026-09-22 22:41:16 UTC FDB119000 UNDULATINE (1S,13R,15R,16S,18R)-9,15-dimethoxy-5,7,17-trioxa-12-azahexacyclo[10.6.2.01,13.02,10.04,8.016,18]icosa-2,4(8),9-triene C18H21NO5 331.4 331.14197277 COC1CC2C3(CCN2CC4=C(C5=C(C=C43)OCO5)OC)C6C1O6 InChI=1S/C18H21NO5/c1-20-11-6-13-18(17-16(11)24-17)3-4-19(13)7-9-10(18)5-12-15(14(9)21-2)23-8-22-12/h5,11,13,16-17H,3-4,6-8H2,1-2H3/t11-,13-,16+,17+,18+/m1/s1 XHXKHSUJQVCHTA-NWVCDLTISA-N average_mass 331.4 ChemAxon mono_mass 331.14197277 ChemAxon smiles COC1CC2C3(CCN2CC4=C(C5=C(C=C43)OCO5)OC)C6C1O6 ChemAxon formula C18H21NO5 ChemAxon inchi InChI=1S/C18H21NO5/c1-20-11-6-13-18(17-16(11)24-17)3-4-19(13)7-9-10(18)5-12-15(14(9)21-2)23-8-22-12/h5,11,13,16-17H,3-4,6-8H2,1-2H3/t11-,13-,16+,17+,18+/m1/s1 ChemAxon inchikey XHXKHSUJQVCHTA-NWVCDLTISA-N ChemAxon