| Name | Formula | Dipole moment (debye) |
|---|
| 4,4'-dichlorodiphenyl ether | C12H8Cl2O | 1.64 |
| 4,4'-dicyanobiphenyl | C14H8N2 | 1.14 |
| 4,4'-diethoxyazoxybenzene | C16H18N2O3 | 2.30 |
| 4,4'-diethoxybiphenyl | C16H18O2 | 1.90 |
| 4,4'-difluorobiphenyl | C12H8F2 | 0.00 |
| 4,4'-dihydroxyazobenzene | C12H10N2O2 | 2.61 |
| 4,4'-dihydroxybiphenyl | C12H10O2 | 2.82 |
| 4,4'-dimethoxybenzophenone | C15H14O3 | 3.90 |
| 4,4'-dimethoxybiphenyl | C14H14O2 | 1.52 |
| 4,4'-dimethylazothiobenzene | | 1.46 |
| 4,4'-dimethylazoxybenzene | C14H14N2O | 1.78 |
| 4,4'-dimethylbenzophenone | C15H14O | 3.43 |
| 4,4'-dimethylbiphenyl | C14H14 | 0.00 |
| 4,4'-dinitrobiphenyl | C12H8N2O4 | 0.00 |
| 4,4'-diphenoxybiphenyl | C24H18O2 | 1.49 |
| 4,4'-dipyridyl disulfide | C10H8N2S2 | 1.90 |
| 4,4,4-trichloro-2-methylbut-1-ene | C5H7Cl3 | 1.79 |
| 4,4,5-trimethyl-2-phenylpyrazol-3-one | C12H14N2O | 2.83 |
| 4,4,6,6-tetramethyl-2-oxo-1,3,2-dioxathiane | C7H14O3S | 4.22 |
| 4,4,8,8-tetrabromotricyclo[5.1.0.03,5]octane | C8H8Br4 | 0.87 |
| 4,4,8,8-tetrachlorotricyclo[5.1.0.03,5]octane | C8H8Cl4 | 0.64 |
| 4,4-dichloro-8,8-dibromotricyclo[5.1.0.03,5]octane | C8H8Br2Cl2 | 0.86 |
| 4,4-dimethyl-1-pentene | C7H14 | 0.31 |
| 4,5,6,7-tetrahydro-1H-benzimidazole | C7H10N2 | 3.93 |
| 4,5,6,7-tetrahydro-2-phenylcyclopenta[b]thiopyran | C14H14S | 1.55 |