Quinolizidine

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| PIN = Octahydro-2H-quinolizine

| OtherNames = Norlupinane, quinolizidine

|Section1={{Chembox Identifiers

| Abbreviations =

| CASNo = 493-10-7

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| UNII = S6O58HOW33

| PubChem = 119036

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| ChEBI = 46751

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| SMILES = C1CCN2CCCCC2C1

| InChI = InChI=1/C9H17N/c1-3-7-10-8-4-2-6-9(10)5-1/h9H,1-8H

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|Section2={{Chembox Properties

| Formula = C₉H₁₇N

| MolarMass = 139.24

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Quinolizidine (norlupinane, octahydro-2H-quinolizine) is a nitrogen-containing heterocyclic compound. Some alkaloids (e.g. cytisine and sparteine) are derivatives of quinolizidine.