codeine ammonium ion derivative codeine(1+) (5alpha,6alpha,17S)-3-methoxy-17-methyl-7,8-didehydro-4,5-epoxymorphinan-17-ium-6-ol +1 300.15942 [H][C@]12C=C[C@H](O)[C@@H]3Oc4c(OC)ccc5C[C@H]1[NH+](C)CC[C@@]23c45 OROGSEYTTFOCAN-DNJOTXNNSA-O C18H22NO3 InChI=1S/C18H21NO3/c1-19-8-7-18-11-4-5-13(20)17(18)22-16-14(21-2)6-3-10(15(16)18)9-12(11)19/h3-6,11-13,17,20H,7-9H2,1-2H3/p+1/t11-,12+,13-,17-,18-/m0/s1 codeine The conjugate acid of codeine arising from protonation of the tertiary amino group; major species at pH 7.3. CHEBI:57871 codeine cation Gmelin:351392 300.37220 chebi_ontology 3-methoxy-17-methyl-7,8-didehydro-4,5alpha-epoxymorphinan-17-ium-6alpha-ol