| Ligand | pKi value | | Method | Comment |
| 1,3,4,6,11,11a-hexahydro-2H-pyrazino[1,2-b]isoquinoline | 4.5 | | 1-01801 | |
| 1-(2-pyridinyl)piperazine(E)-2-buenedioate (1:1) salt | 4.8 | | 1-01801 | |
| 1-(6-chloro-2-pyridinyl)piperazine(E)-2-butenedioate (1:1) salt | 5.3 | | 1-01801 | |
| 1-[2-(methylthio)phenyl]piperazine(Z)-2-butenedioate (1:1) salt | 6.1 | | 1-01801 | |
| 2'-methylspiro[1-azabicyclo[2.2.2.]octane -3,5'-[1,3]oxathiolane]monohydrochloride | 5.8 | | 1-01801 | |
| 3-[2-(trifluoromethyl)phenoxyl]-1- azabicyclo[2.2.2.]octane ethanedioate (R) | 6.7 | | 1-01801 | |
| 3-[2-(trifluoromethyl)phenoxyl]-1- azabicyclo[2.2.2.]octane ethanedioate (R) | 6.8 | | 1-01801 | |
| 3-[2-(trifluoromethyl)phenoxyl]-1- azabicyclo[2.2.2.]octane ethanedioate (R) | 7.1 | | 1-01801 | |
| 3-(4-chloro-1,2,5-thiadiazol-3-yl) -1,2,5,6-tetrahydro-1-methylpyridineoxalate | 7.5 | | 1-01801 | |
| 3-(4-hexyloxy-1,2,5-thiadiazol-3-yl) -1,2,5,6-tetrahydro-1-methylpyridine(Z)-2-butenedioate (1:1) salt | 8 | | 1-01801 | |
| 3-[4-(hexylthio)-1,2,5-thiadiazol-3-yl) -1,2,5,6-tetrahydro-1-methylpyridine(Z)-2-butenedioate | 7.9 | | 1-01801 | |
| 4-[2-[(4-fluorophenyl)methoxy]ethyl]-1-(phenylmethyl) piperidine(E)-2-butenedioate (1:1) | 8 | | 1-01801 | |
| 4-damp bromide | 8.2 | | 1-01801 | |
| 4-damp bromide | 8.2 | | 1-01801 | |
| 4-damp bromide | 8.4 | | 1-01801 | |
| 4Cl-McN-a343 | 5.3 | | 1-01801 | |
| 5-(4-chlorophenyl)-2,3,5,6-tetrahydroimidazol [1,2-c]quinazoline | 6.4 | | 1-01801 | |
| AF-102b/fks-508 | 5.6 | | 1-01801 | |
| AF-30 | 5.3 | | 1-01801 | |
| AF-30 | 5.3 | | 1-01801 | |
| AF-DX 116 bs | 7.1 | | 1-01801 | |
| AH 6405 | 5.1 | | 1-01801 | |
| AH 6405 | 5.1 | | 1-01801 | |
| AH 6405 | 5.5 | | 1-01801 | |
| AH 6405 | <5.3 | | 1-01801 | |
| AHR 602 | 4.6 | | 1-01801 | |
| AHR 602 | 5.4 | | 1-01801 | |
| AHR 602 | 5 | | 1-01801 | |
| AHR 602 | <5.3 | | 1-01801 | |
| AHR 603 | <6.3 | | 1-01801 | |
| McN-5707 | 7.2 | | 1-01801 | |
| RS 86 HBr | 5.2 | | 1-01801 | |
| RS 86 HBr | 5.4 | | 1-01801 | |
| RS 86 HBr | 5.9 | | 1-01801 | |
| UH-AH 37 HCl H2O | 7.4 | | 1-01801 | |
| UH-AH 37 HCl H2O | 7.4 | | 1-01801 | |
| YM796 | 5.8 | | 1-01801 | |
| YM796 | 5.9 | | 1-01801 | |
| YM796 | 6.2 | | 1-01801 | |
| aceclidine HCl | 5.4 | | 1-01801 | |
| aceclidine HCl | 5.4 | | 1-01801 | |
| arecaidine propargyl ester HCl | 7 | | 1-01801 | |
| arecoline HBr | 5.9 | | 1-01801 | |
| arecoline HBr | 6.2 | | 1-01801 | |
| arecoline HBr | 6.4 | | 1-01801 | |
| benzetimide hydrochloride | 8.9 | | 1-01801 | |
| benzetimide hydrochloride | 9.3 | | 1-01801 | |
| benzetimide hydrochloride | 9.5 | | 1-01801 | |
| bethanechol chloride | 4.3 | | 1-01801 | |
| bethanechol chloride | 5.1 | | 1-01801 | |
| bethanechol chloride | 5.1 | | 1-01801 | |
| dexetimide hydrochloride | 10.9 | | 1-01801 | |
| dexetimide hydrochloride | 10 | | 1-01801 | |
| dexetimide hydrochloride | 9.7 | | 1-01801 | |
| dicyclomine HCl | 7.4 | | 1-01801 | |
| dicyclomine HCl | 7.7 | | 1-01801 | |
| dicyclomine HCl | 8.2 | | 1-01801 | |
| ethylcholine iodide (o-) | 4.7 | | 1-01801 | |
| isoarecoline HCl | 4.7 | | 1-01801 | |
| levetimide hydrochloride | 5.8 | | 1-01801 | |
| levetimide hydrochloride | 5.9 | | 1-01801 | |
| levetimide hydrochloride | 6 | | 1-01801 | |
| mianserin HCl (racemate) | 6.5 | | 1-01801 | |
| mianserin HCl (racemate) | 6.5 | | 1-01801 | |
| minaprine 2HCl | <4.9 | | 1-01801 | |
| mirtazapine HCl (racemate) | 6 | | 1-01801 | |
| mirtazapine HCl (racemate) | 6 | | 1-01801 | |
| oxotremorine m | 6.4 | | 1-01801 | |
| quinuclidinyl benzilate | 10.1 | | 1-01801 | |
| quinuclidinyl benzilate | 10 | | 1-01801 | |
| quinuclidinyl benzilate | 9.7 | | 1-01801 | |
| secoverine HCl | 8.6 | | 1-01801 | |
| secoverine HCl | 8.8 | | 1-01801 | |
| secoverine HCl | 9.1 | | 1-01801 | |
| sertindole | 6.9 | | 1-01801 | |
| telenzepine diHCl | 7.9 | | 1-01801 | |
| telenzepine diHCl | 8.2 | | 1-01801 | |
| telenzepine diHCl | 8.4 | | 1-01801 | |
| threo-DL-3-hydroxyaspartic acid | <5.2 | | 1-01801 | |
| trans-5-chloro-2,3,3a,12b-tetrahydro-2-methyl- 1H-dibenz(2,3:6,7)oxepino(4,5-c)pyrrole maleate | 5.97 | | 1-01801 | |