| 3983-19-5 | calcium bicarbonate | C2H4CaO6 |
| 3983-25-3 | disodium tetrahydrogen [vinylenebis[(3-sulphonato-1,4-phenylene)nitrilo]]tetraacetate | C22H20N2Na2O14S2 |
| 3983-45-7 | FENCHLORPHOS-OXON | C8H8 Cl3 O4 P |
| 3983-90-2 | Ethanaminium, N,N,N-triethyl-, benzenesulfonate | C8H20N.C6H5O3S |