Impentamine
{{chembox
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 424718688
| ImageFile = Impentamine.svg
| ImageSize = 220px
| IUPACName = 5-(1H-imidazol-5-yl)pentan-1-amine
| OtherNames =
| Section1 = {{Chembox Identifiers
| CASNo_Ref = {{cascite|correct|??}}
| CASNo=34973-91-6
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = 88JSL4TQ76
| PubChem=9793868
| IUPHAR_ligand = 1252
| SMILES = C1=C(NC=N1)CCCCCN
| MeSHName = Impentamine
| ChemSpiderID_Ref = {{chemspidercite|changed|chemspider}}
| ChemSpiderID = 7969635
| ChEMBL = 417096
| InChI = 1/C8H15N3/c9-5-3-1-2-4-8-6-10-7-11-8/h6-7H,1-5,9H2,(H,10,11)
| InChIKey = MZCJWLAXZRFUPI-UHFFFAOYAF
| StdInChI_Ref = {{stdinchicite|changed|chemspider}}
| StdInChI = 1S/C8H15N3/c9-5-3-1-2-4-8-6-10-7-11-8/h6-7H,1-5,9H2,(H,10,11)
| StdInChIKey_Ref = {{stdinchicite|changed|chemspider}}
| StdInChIKey = MZCJWLAXZRFUPI-UHFFFAOYSA-N
}}
| Section2 = {{Chembox Properties
| Formula = C8H15N3
| MolarMass = 153.2248 g/mol
| Appearance =
| Density =
| MeltingPt =
| BoilingPt =
| Solubility =
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| Section3 = {{Chembox Hazards
| MainHazards =
| FlashPt =
| AutoignitionPt =
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}}
Impentamine is a histamine antagonist selective for the H3 subtype.{{cite journal | last1 = Vollinga | first1 = RC | last2 = Menge | first2 = WM | last3 = Leurs | first3 = R | last4 = Timmerman | first4 = H | title = Homologs of histamine as histamine H3 receptor antagonists: a new potent and selective H3 antagonist, 4(5)-(5-aminopentyl)-1H-imidazole | journal = Journal of Medicinal Chemistry | volume = 38 | issue = 2 | pages = 266–71 | year = 1995 | pmid = 7830269 | doi=10.1021/jm00002a008}}{{cite journal | last1 = Van Der Goot | first1 = H | last2 = Timmerman | first2 = H | title = Selective ligands as tools to study histamine receptors | journal = European Journal of Medicinal Chemistry | volume = 35 | issue = 1 | pages = 5–20 | year = 2000 | pmid = 10733599 | doi=10.1016/S0223-5234(00)00101-X}}