TTD_Target_ID Target_Name TTD_Drug_ID Drug_Name Drug_Highest_Status Drug_PubchemID Molecular_Formula Molecular_Weight Canonical_SMILES Activity Binder_Type T81905 Histamine H1 receptor D01JUF Phentolamine Approved 5775 C17H19N3O 281.35 CC1=CC=C(C=C1)N(CC2=NCCN2)C3=CC(=CC=C3)O IC50 = 316227.77 nM Non binder T81905 Histamine H1 receptor B06RGY 2-[3-Phenyl-3-(4-methylphenyl)propyl]-1H-imidazole-4-(ethanamine) Investigative 10615605 C21H25N3 319.4 CC1=CC=C(C=C1)C(CCC2=NC=C(N2)CCN)C3=CC=CC=C3 Ki = 316000000000000 nM Non binder T81905 Histamine H1 receptor B0WTH9 2-(12-Aminododecyl)pyridine Investigative 11300006 C17H30N2 262.4 C1=CC=NC(=C1)CCCCCCCCCCCCN Ki = 1000000000000000 nM Non binder T81905 Histamine H1 receptor B1DBY6 12-(1H-Imidazol-5-yl)dodecan-1-amine Investigative 11459394 C15H29N3 251.41 C1=C(NC=N1)CCCCCCCCCCCCN Ki = 1000000000000000 nM Non binder T81905 Histamine H3 receptor B1M4IN Ethyl 1-[4-[4-(phenylcarbamoylsulfamoyl)phenoxy]butyl]piperidine-4-carboxylate Investigative 60143923 C25H33N3O6S 503.6 CCOC(=O)C1CCN(CC1)CCCCOC2=CC=C(C=C2)S(=O)(=O)NC(=O)NC3=CC=CC=C3 IC50 > 100000000 nM Non binder T81905 Histamine H4 receptor B1MT6L 2-(1H-Imidazol-4-ylmethyl)piperidine Investigative 44211094 C9H15N3 165.24 C1CCNC(C1)CC2=CN=CN2 Ki = 112000000000000 nM Non binder T81905 Histamine H4 receptor B1S4QY 4-(1H-Imidazol-5-yl)-1,2,3,6-tetrahydropyridine Investigative 24729202 C8H11N3 149.19 C1CNCC=C1C2=CN=CN2 Ki = 3800000000000 nM Non binder T81905 Histamine H1 receptor B2UH3W 10-Pyridin-2-yldecan-1-amine Investigative 11172377 C15H26N2 234.38 C1=CC=NC(=C1)CCCCCCCCCCN Ki = 79400000000000 nM Non binder T81905 Histamine H1 receptor B30ZQL 2-(2,2-Diphenylethyl)-1H-imidazole-4-ethanamine Investigative 10685002 C19H21N3 291.4 C1=CC=C(C=C1)C(CC2=NC=C(N2)CCN)C3=CC=CC=C3 Ki = 126000000000000 nM Non binder T81905 Histamine H4 receptor B3EO5F (4-Bromo-1H-indol-2-yl)(4-methylpiperazin-1-yl)methanone Investigative 11120826 C14H16BrN3O 322.2 CN1CCN(CC1)C(=O)C2=CC3=C(N2)C=CC=C3Br Ki = 31988951.1 nM Non binder T81905 Histamine H1 receptor B3KVQ8 2-[3-(Trifluoromethyl)phenyl]thiazole-4-ethanamine Investigative 10812715 C12H11F3N2S 272.29 C1=CC(=CC(=C1)C(F)(F)F)C2=NC(=CS2)CCN Ki = 79400000000000 nM Non binder T81905 Histamine H4 receptor B3YXC5 2,4-Imidazolidinedione, 5,5-diphenyl-3-(3-(1-piperidinyl)propyl)- Investigative 3041343 C23H27N3O2 377.5 C1CCN(CC1)CCCN2C(=O)C(NC2=O)(C3=CC=CC=C3)C4=CC=CC=C4 Ki = 489778.82 nM Non binder T81905 Histamine H3 receptor B3ZI1L (4-Cyclobutylpiperazin-1-yl)-(6-cyclohexylspiro[2.5]octan-2-yl)methanone Investigative 76332844 C23H38N2O 358.6 C1CCC(CC1)C2CCC3(CC2)CC3C(=O)N4CCN(CC4)C5CCC5 Ki > 10000000 nM Non binder T81905 Histamine H1 receptor B4T3RA 2-Benzylthiazole-4-ethanamine Investigative 44369859 C12H14N2S 218.32 C1=CC=C(C=C1)CC2=NC(=CS2)CCN Ki = 15800000000000 nM Non binder T81905 Histamine H4 receptor B4TBD7 Piperidine, 4-(1H-imidazol-4-ylmethylene)- Investigative 11788475 C9H13N3 163.22 C1CNCCC1=CC2=CN=CN2 Ki = 575000000000000 nM Non binder T81905 Histamine H4 receptor B4Z3GK (7-Chloro-1H-indol-2-yl)(4-methylpiperazin-1-yl)methanone Investigative 9878733 C14H16ClN3O 277.75 CN1CCN(CC1)C(=O)C2=CC3=C(N2)C(=CC=C3)Cl Ki = 19010782.8 nM Non binder T81905 Histamine H4 receptor B5F8KP (5-Fluoro-1H-indol-2-yl)(4-methylpiperazin-1-yl)methanone Investigative 4906599 C14H16FN3O 261.29 CN1CCN(CC1)C(=O)C2=CC3=C(N2)C=CC(=C3)F Ki = 14996848.36 nM Non binder T81905 Histamine H4 receptor B64UXD 1H-Imidazole-4-propanamine Investigative 170389 C6H11N3 125.17 C1=C(NC=N1)CCCN Ki = 28800000000000000 nM Non binder T81905 Histamine H1 receptor B6IR1G 2-[2-(3-Cyclohexyl-3-phenylpropyl)-1H-imidazol-5-yl]ethanamine Investigative 44369867 C20H29N3 311.5 C1CCC(CC1)C(CCC2=NC=C(N2)CCN)C3=CC=CC=C3 Ki = 100000000000000 nM Non binder T81905 Histamine H4 receptor B6JEF4 4-[2-(1H-Imidazol-4-yl)ethyl]piperidine Investigative 10176370 C10H17N3 179.26 C1CNCCC1CCC2=CN=CN2 Ki = 2690000000000000 nM Non binder T81905 Histamine H3 receptor B6WB1P Ethyl 1-[3-(4-sulfamoylphenoxy)propyl]piperidine-4-carboxylate Investigative 60145490 C17H26N2O5S 370.5 CCOC(=O)C1CCN(CC1)CCCOC2=CC=C(C=C2)S(=O)(=O)N IC50 > 10000000 nM Non binder T81905 Histamine H4 receptor B6Z3MX 3-(1H-Imidazol-5-ylmethyl)piperidine Investigative 16078981 C9H15N3 165.24 C1CC(CNC1)CC2=CN=CN2 Ki = 1620000000000000 nM Non binder T81905 Histamine H4 receptor B74UHT 4-((2-Amino-6-(4-methylpiperazin-1-yl)pyrimidin-4-ylamino)methyl)benzoic acid Investigative 46228087 C17H22N6O2 342.4 CN1CCN(CC1)C2=NC(=NC(=C2)NCC3=CC=C(C=C3)C(=O)O)N Ki = 376600 nM Non binder T81905 Histamine H4 receptor B7J9NB 2-[3-(1H-Imidazol-5-yl)propyl]piperidine Investigative 11148240 C11H19N3 193.29 C1CCNC(C1)CCCC2=CN=CN2 Ki = 1740000000000000 nM Non binder T81905 Histamine H4 receptor B7R4NI 2-[2-(1H-Imidazol-5-yl)ethyl]piperidine Investigative 11412714 C10H17N3 179.26 C1CCNC(C1)CCC2=CN=CN2 Ki = 224000000000000 nM Non binder T81905 Histamine H4 receptor B7RT6D 3-[2-(1H-Imidazol-4-yl)ethyl]piperidine Investigative 11171320 C10H17N3 179.26 C1CC(CNC1)CCC2=CN=CN2 Ki = 3090000000000000 nM Non binder T81905 Histamine H1 receptor B7YAT3 2-(3,3-Diphenylpropyl)-4-(2-pyrrolizinoethyl)-1H-imidazole Investigative 10689833 C24H29N3 359.5 C1CCN(C1)CCC2=CN=C(N2)CCC(C3=CC=CC=C3)C4=CC=CC=C4 Ki = 398000000000000 nM Non binder T81905 Histamine H3 receptor B8HGE9 1-(2,5-Dichlorophenyl)-3-[4-(2-pyrrolidin-1-ylethoxy)phenyl]sulfonylurea Investigative 60145632 C19H21Cl2N3O4S 458.4 C1CCN(C1)CCOC2=CC=C(C=C2)S(=O)(=O)NC(=O)NC3=C(C=CC(=C3)Cl)Cl IC50 > 10000000 nM Non binder T81905 Histamine H3 receptor B8HMX5 1-Propan-2-yl-3-[4-(2-pyrrolidin-1-ylethoxy)phenyl]sulfonylurea Investigative 60145629 C16H25N3O4S 355.5 CC(C)NC(=O)NS(=O)(=O)C1=CC=C(C=C1)OCCN2CCCC2 IC50 > 100000000 nM Non binder T81905 Histamine H4 receptor B8PT4W (2S)-2-[[4-(3-Piperidin-1-ylpropoxy)phenyl]methylamino]propanamide Investigative 90654502 C18H29N3O2 319.4 C[C@@H](C(=O)N)NCC1=CC=C(C=C1)OCCCN2CCCCC2 Ki = 331131.12 nM Non binder T81905 Histamine H4 receptor B8Y9OH (5-Amino-1H-indol-2-yl)(4-methylpiperazin-1-yl)methanone Investigative 10988959 C14H18N4O 258.32 CN1CCN(CC1)C(=O)C2=CC3=C(N2)C=CC(=C3)N Ki = 14996848.36 nM Non binder T81905 Histamine H3 receptor B9YK0S Ethyl 1-[2-(4-sulfamoylphenoxy)ethyl]piperidine-4-carboxylate Investigative 34681379 C16H24N2O5S 356.4 CCOC(=O)C1CCN(CC1)CCOC2=CC=C(C=C2)S(=O)(=O)N IC50 > 10000000 nM Non binder T81905 Histamine H1 receptor BA64TQ 2-(2-Phenyl-thiazol-4-yl)-ethylamine Investigative 22690260 C11H12N2S 204.29 C1=CC=C(C=C1)C2=NC(=CS2)CCN Ki = 31600000000000 nM Non binder T81905 Histamine H4 receptor BB49AV (R)-4-(Pyrrolidin-3-ylmethyl)-1H-imidazole Investigative 44367567 C8H13N3 151.21 C1CNC[C@H]1CC2=CN=CN2 Ki = 26900000000000000 nM Non binder T81905 Histamine H1 receptor BBJM89 14-(1H-Imidazol-5-yl)tetradecan-1-amine Investigative 11346501 C17H33N3 279.5 C1=C(NC=N1)CCCCCCCCCCCCCCN Ki = 3980000000000000 nM Non binder T81905 Histamine H1 receptor BBQ1K0 10-Pyridin-4-yldecan-1-amine Investigative 11253315 C15H26N2 234.38 C1=CN=CC=C1CCCCCCCCCCN Ki = 200000000000000 nM Non binder T81905 Histamine H2 receptor BCH05I 1H-Imidazole-5-decanamine Investigative 10263017 C13H25N3 223.36 C1=C(NC=N1)CCCCCCCCCCN Ki = 50100000000000 nM Non binder T81905 Histamine H1 receptor BCH05I 1H-Imidazole-5-decanamine Investigative 10263017 C13H25N3 223.36 C1=C(NC=N1)CCCCCCCCCCN Ki = 200000000000000 nM Non binder T81905 Histamine H4 receptor BCPY34 (5,7-Dichloro-1H-indol-2-yl)(4-methylpiperazin-1-yl)methanone Investigative 9944571 C14H15Cl2N3O 312.2 CN1CCN(CC1)C(=O)C2=CC3=CC(=CC(=C3N2)Cl)Cl Ki = 5000345.35 nM Non binder T81905 Histamine H1 receptor BCVT08 10-Pyridin-3-yldecan-1-amine Investigative 11241807 C15H26N2 234.38 C1=CC(=CN=C1)CCCCCCCCCCN Ki = 126000000000000 nM Non binder T81905 Histamine H3 receptor BDEG38 1-Cyclohexyl-3-[4-(4-piperidin-1-ylbutoxy)phenyl]sulfonylurea Investigative 60143762 C22H35N3O4S 437.6 C1CCC(CC1)NC(=O)NS(=O)(=O)C2=CC=C(C=C2)OCCCCN3CCCCC3 IC50 > 10000000 nM Non binder T81905 Histamine H4 receptor BDQT98 (5-Bromo-1H-indol-2-yl)-(4-methyl-piperazin-1-yl)-methanone Investigative 9923162 C14H16BrN3O 322.2 CN1CCN(CC1)C(=O)C2=CC3=C(N2)C=CC(=C3)Br Ki = 7998342.55 nM Non binder T81905 Histamine H4 receptor BE56KF 3-[5-Methyl-4-[4-(3-piperidin-1-ylpropoxy)phenyl]-1,2,4-triazol-3-yl]pyridine Investigative 71712245 C22H27N5O 377.5 CC1=NN=C(N1C2=CC=C(C=C2)OCCCN3CCCCC3)C4=CN=CC=C4 Ki = 1412537.54 nM Non binder T81905 Histamine H4 receptor BF0N7I (S)-4-(Pyrrolidin-3-ylmethyl)-1H-imidazole Investigative 44367568 C8H13N3 151.21 C1CNC[C@@H]1CC2=CN=CN2 Ki = 7080000000000000 nM Non binder T81905 Histamine H4 receptor BF3C4S (5-Methyl-1H-indol-2-yl)-(4-methylpiperazin-1-yl)methanone Investigative 4242975 C15H19N3O 257.329 CC1=CC2=C(C=C1)NC(=C2)C(=O)N3CCN(CC3)C Ki = 46025657.36 nM Non binder T81905 Histamine H1 receptor BGV6Z8 11-(1H-Imidazol-5-yl)undecan-1-amine Investigative 11333854 C14H27N3 237.38 C1=C(NC=N1)CCCCCCCCCCCN Ki = 398000000000000 nM Non binder T81905 Histamine H1 receptor BI7Y0X 5-(10-Pyrrolidin-1-yldecyl)-1H-imidazole Investigative 11231249 C17H31N3 277.4 C1CCN(C1)CCCCCCCCCCC2=CN=CN2 Ki = 251000000000000 nM Non binder T81905 Histamine H1 receptor BJ18UY 5-(12-Pyrrolidin-1-yldodecyl)-1H-imidazole Investigative 11358657 C19H35N3 305.5 C1CCN(C1)CCCCCCCCCCCCC2=CN=CN2 Ki = 501000000000000 nM Non binder T81905 Histamine H4 receptor BJ9QV5 (4,5-Dichloro-1H-indol-2-yl)(4-methylpiperazin-1-yl)methanone Investigative 11066922 C14H15Cl2N3O 312.2 CN1CCN(CC1)C(=O)C2=CC3=C(N2)C=CC(=C3Cl)Cl Ki = 5000345.35 nM Non binder T81905 Histamine H1 receptor BK8L0R 13-(1H-Imidazol-5-yl)tridecan-1-amine Investigative 11288570 C16H31N3 265.44 C1=C(NC=N1)CCCCCCCCCCCCCN Ki = 2510000000000000 nM Non binder T81905 Histamine H4 receptor BK8UY3 [2-(1H-Imidazol-5-yl)cyclopropyl]methanamine Investigative 9793791 C7H11N3 137.18 C1C(C1C2=CN=CN2)CN Ki = 8910000000000000 nM Non binder T81905 Histamine H4 receptor BK9YH2 4-(1H-Imdazol-4-yl)piperidine Investigative 10678418 C8H13N3 151.21 C1CNCCC1C2=CN=CN2 Ki = 457000000000000 nM Non binder T81905 Histamine H1 receptor BK9ZE1 2-(4,4-Diphenylbutyl)-1H-imidazole-4-ethanamine Investigative 10471211 C21H25N3 319.4 C1=CC=C(C=C1)C(CCCC2=NC=C(N2)CCN)C3=CC=CC=C3 Ki = 631000000000000 nM Non binder T81905 Histamine H3 receptor BKQ74I 1-Cyclohexyl-3-[4-(2-pyrrolidin-1-ylethoxy)phenyl]sulfonylurea Investigative 60145631 C19H29N3O4S 395.5 C1CCC(CC1)NC(=O)NS(=O)(=O)C2=CC=C(C=C2)OCCN3CCCC3 IC50 > 10000000 nM Non binder T81905 Histamine H4 receptor BL31DX (7-Amino-1H-indol-2-yl)-(4-methyl-piperazin-1-yl)-methanone Investigative 10967174 C14H18N4O 258.32 CN1CCN(CC1)C(=O)C2=CC3=C(N2)C(=CC=C3)N Ki = 7998342.55 nM Non binder T81905 Histamine H4 receptor BMX79O (5-Hydroxy-1H-indol-2-yl)-(4-methyl-piperazin-1-yl)-methanone Investigative 10923241 C14H17N3O2 259.3 CN1CCN(CC1)C(=O)C2=CC3=C(N2)C=CC(=C3)O Ki = 23014418.17 nM Non binder T81905 Histamine H1 receptor BNHX18 2-[3-Phenyl-3-(4-bromophenyl)propyl]-1H-imidazole-4-(ethanamine) Investigative 10596163 C20H22BrN3 384.3 C1=CC=C(C=C1)C(CCC2=NC=C(N2)CCN)C3=CC=C(C=C3)Br Ki = 398000000000000 nM Non binder T81905 Histamine H2 receptor BO1BS6 6-(1H-Imidazol-5-yl)hexan-1-amine Investigative 10261471 C9H17N3 167.25 C1=C(NC=N1)CCCCCCN Ki = 5010000000000 nM Non binder T81905 Histamine H1 receptor BO1BS6 6-(1H-Imidazol-5-yl)hexan-1-amine Investigative 10261471 C9H17N3 167.25 C1=C(NC=N1)CCCCCCN Ki = 2000000000000 nM Non binder T81905 Histamine H4 receptor BO1BS6 6-(1H-Imidazol-5-yl)hexan-1-amine Investigative 10261471 C9H17N3 167.25 C1=C(NC=N1)CCCCCCN Ki = 1320000000000000 nM Non binder T81905 Histamine H1 receptor BO2R8Q 5-(8-Pyrrolidin-1-yloctyl)-1H-imidazole Investigative 11230427 C15H27N3 249.39 C1CCN(C1)CCCCCCCCC2=CN=CN2 Ki = 251000000000000 nM Non binder T81905 Histamine H4 receptor BOE4S2 4-[1-(1H-Imidazol-4-yl)vinyl]piperidine Investigative 11275349 C10H15N3 177.25 C=C(C1CCNCC1)C2=CN=CN2 Ki = 355000000000000 nM Non binder T81905 Histamine H1 receptor BOE68K 12-Pyridin-4-yldodecan-1-amine Investigative 10264715 C17H30N2 262.4 C1=CN=CC=C1CCCCCCCCCCCCN Ki = 251000000000000 nM Non binder T81905 Histamine H4 receptor BQE6H1 3-[3-(1H-Imidazol-5-yl)propyl]piperidine Investigative 11159854 C11H19N3 193.29 C1CC(CNC1)CCCC2=CN=CN2 Ki = 2570000000000000 nM Non binder T81905 Histamine H3 receptor BQY2H7 Ethyl 1-[4-(4-sulfamoylphenoxy)butyl]piperidine-4-carboxylate Investigative 60145494 C18H28N2O5S 384.5 CCOC(=O)C1CCN(CC1)CCCCOC2=CC=C(C=C2)S(=O)(=O)N IC50 > 10000000 nM Non binder T81905 Histamine H1 receptor BQY52G 12-(3-Pyridyl)-1-dodecanamine Investigative 10890691 C17H30N2 262.4 C1=CC(=CN=C1)CCCCCCCCCCCCN Ki = 251000000000000 nM Non binder T81905 Histamine H1 receptor BS01CJ 2-[2-[3-(Trifluoromethyl)phenyl]-1H-imidazol-5-yl]ethanamine Investigative 5310982 C12H12F3N3 255.24 C1=CC(=CC(=C1)C(F)(F)F)C2=NC=C(N2)CCN Ki = 251000000000000 nM Non binder T81905 Histamine H1 receptor BS0V5D 9-Pyridin-2-ylnonan-1-amine Investigative 11816882 C14H24N2 220.35 C1=CC=NC(=C1)CCCCCCCCCN Ki = 31600000000000 nM Non binder T81905 Histamine H4 receptor BSUO54 (5,7-Difluoro-1H-indol-2-yl)(4-methylpiperazin-1-yl)methanone Investigative 9900313 C14H15F2N3O 279.28 CN1CCN(CC1)C(=O)C2=CC3=CC(=CC(=C3N2)F)F Ki = 13995873.23 nM Non binder T81905 Histamine H4 receptor BTK9M3 (7-Methyl-1H-indol-2-yl)-(4-methyl-piperazin-1-yl)-methanone Investigative 11065080 C15H19N3O 257.329 CC1=C2C(=CC=C1)C=C(N2)C(=O)N3CCN(CC3)C Ki = 6998419.96 nM Non binder T81905 Histamine H4 receptor BTM8W6 (5,7-Dimethyl-1H-indol-2-yl)(4-methylpiperazin-1-yl)methanone Investigative 10934567 C16H21N3O 271.36 CC1=CC(=C2C(=C1)C=C(N2)C(=O)N3CCN(CC3)C)C Ki = 30974192.99 nM Non binder T81905 Histamine H4 receptor BV3D6S 5-(Pyrrolidin-3-ylmethyl)-1H-imidazole Investigative 11819221 C8H13N3 151.21 C1CNCC1CC2=CN=CN2 Ki = 19500000000000000 nM Non binder T81905 Histamine H4 receptor BVA4X1 1H-Imidazol-5-yl(piperidin-4-yl)methanone Investigative 11252330 C9H13N3O 179.22 C1CNCCC1C(=O)C2=CN=CN2 Ki = 2090000000000 nM Non binder T81905 Histamine H1 receptor BX6AO5 2-(5,5-Diphenylpentyl)-1H-imidazole-4-ethanamine Investigative 10246247 C22H27N3 333.5 C1=CC=C(C=C1)C(CCCCC2=NC=C(N2)CCN)C3=CC=CC=C3 Ki = 794000000000000 nM Non binder T81905 Histamine H1 receptor BX6YB5 2-(3-Chlorobenzyl)thiazole-4-ethanamine Investigative 10669501 C12H13ClN2S 252.76 C1=CC(=CC(=C1)Cl)CC2=NC(=CS2)CCN Ki = 31600000000000 nM Non binder T81905 Histamine H4 receptor BXIF42 (7-Bromo-1H-indol-2-yl)-(4-methylpiperazin-1-yl)methanone Investigative 9966927 C14H16BrN3O 322.2 CN1CCN(CC1)C(=O)C2=CC3=C(N2)C(=CC=C3)Br Ki = 61094202.49 nM Non binder T81905 Histamine H2 receptor BY8P4D 8-(1H-Imidazol-5-yl)octan-1-amine Investigative 10420190 C11H21N3 195.3 C1=C(NC=N1)CCCCCCCCN Ki = 31600000000000 nM Non binder T81905 Histamine H1 receptor BY8P4D 8-(1H-Imidazol-5-yl)octan-1-amine Investigative 10420190 C11H21N3 195.3 C1=C(NC=N1)CCCCCCCCN Ki = 25100000000000 nM Non binder T81905 Histamine H1 receptor BYQ39O 1H-Imidazole-5-nonanamine Investigative 11264275 C12H23N3 209.33 C1=C(NC=N1)CCCCCCCCCN Ki = 50100000000000 nM Non binder T81905 Histamine H1 receptor BYZ0A7 (+)-(S)-N,N-Dimethyl-2-(3-(1-(pyridin-2-yl)ethyl)benzo[b]thiophen-2-yl)ethanamine Investigative 11551351 C19H22N2S 310.5 C[C@H](C1=CC=CC=N1)C2=C(SC3=CC=CC=C32)CCN(C)C IC50 = 256000 nM Non binder T81905 Histamine H4 receptor D01CJZ VUF 5681 Investigative 10330240 C11H19N3 193.29 C1CNCCC1CCCC2=CN=CN2 Ki = 1620000000000000 nM Non binder T81905 Histamine H2 receptor D0B1KT AF353 Investigative 15953802 C14H17IN4O2 400.21 CC(C)C1=CC(=C(C=C1OC2=CN=C(N=C2N)N)I)OC Ki = 100000000 nM Non binder T81905 Histamine H2 receptor D0E5EB impentamine Investigative 9793868 C8H15N3 153.22 C1=C(NC=N1)CCCCCN Ki = 3980000000000 nM Non binder T81905 Histamine H4 receptor D0E5EB impentamine Investigative 9793868 C8H15N3 153.22 C1=C(NC=N1)CCCCCN Ki = 2690000000000000 nM Non binder T81905 Histamine H2 receptor D0E5XM imbutamine Investigative 13499360 C7H13N3 139.2 C1=C(NC=N1)CCCCN Ki = 794328.23 nM Non binder T81905 Histamine H4 receptor D0E5XM imbutamine Investigative 13499360 C7H13N3 139.2 C1=C(NC=N1)CCCCN Ki = 69200000000000000 nM Non binder T81905 Histamine H4 receptor D0H3DY VUF-5297 Investigative 10374457 C6H9N3 123.16 C1[C@@H]([C@H]1N)C2=CN=CN2 Ki = 912000000000000 nM Non binder T81905 Histamine H4 receptor D0K6AK VUF-5296 Investigative 10103168 C6H9N3 123.16 C1[C@H]([C@@H]1N)C2=CN=CN2 Ki = 263000000000000 nM Non binder T81905 Histamine H4 receptor D0OM9G Immepip Investigative 3035842 C9H15N3 165.24 C1CNCCC1CC2=CN=CN2 Ki = 45700000000000000 nM Non binder