| 1 | 73-03-0 | 3'-deoxyadenosine | C10H13N5O3 | 251.24 | 225-229°C | |
| 2 | 73-04-1 | 3'-deoxyadenosine 5'-triphosphate | C10H16N5O12P3 | 491.18 | | |
| 3 | 73-05-2 | Phentolamine Hydrochloride | C17H20ClN3O | 317.81 | | |
| 4 | 73-07-4 | prazepine | C19H24N2 | 280.41 | | |
| 5 | 73-09-6 | Etozolin | C13H20N2O3S | 284.378 | 140° | |
| 6 | 73-13-2 | 2,1,3-Benzothiadiazole | | | | |
| 7 | 73-22-3 | L-Tryptophan | C11H12N2O2 | 204.23 | 289-290°C (dec.)(lit.) | 11.4 g/L (25 ºC) |
| 8 | 73-22-5 | L-Tryptophan>99% | | | | |
| 9 | 73-24-5 | Adenine | C5H5N5 | 135.13 | >360 °C (lit.) | 0.5 g/L (20 ºC) |
| 10 | 73-31-4 | Melatonine | C13H16N2O2 | 232.28 | 116.5-118 °C (lit.) | |
| 11 | 73-32-5 | L-Isoleucine | C6H13NO2 | 131.17 | 288 °C (dec.) (lit.) | 41.2 g/L (50 ºC) |
| 12 | 73-34-7 | Rhaminopyranose, L- | C6H12O5 | 164.15648 | | |
| 13 | 73-38-1 | 2-Bromo-4-chloroaniline | | | | |
| 14 | 73-39-2 | 5-(2-propenyl)-2'-deoxyuridine | C12H16N2O5 | | | |
| 15 | 73-40-5 | Guanine | C5H5N5O | 151.13 | >300 °C (lit.) | practically insoluble |
| 16 | 73-48-3 | bendroflumethiazide | C15H14F3N3O4S2 | 421.41 | 205-207°C | 40mg/L(room temperature) |
| 17 | 73-49-4 | Quinethazone | C10H12ClN3O3S | 289.74 | | |
| 18 | 73-51-5 | DidecylDimethylAmmoniumChloride | | | | |
| 19 | 73-51-8 | 4,4'-BIPHENYLENEBIS(2-OXOETHYLENE) BIS(DIMETHYL(2-HYDROXYETHYL)-AMMONIUM) DIBROMIDE | C24H34Br2N2O4 | 574.34576 | | |
| 20 | 73-53-0 | NSC-57153 | | | | |
| 21 | 73-63-2 | 3-(1-Piperidinyl)propiophenone HCl | C14H20ClNO | 253.7677 | 192-193 °C | |
| 22 | 73-64-3 | o-Chlorobetanidine sulfate | | | | |
| 23 | 73-66-5 | 4-Amino-5-ethoxymethyl-2-methylpyrimidine (See also A609085, HBr salt) | C8H13N3O | 167.21 | | |
| 24 | 73-67-6 | 4-amino-5-hydroxymethyl-2-methylpyrimidine | C6H9N3O | 139.16 | 193-198°; mp 198-200° | |
| 25 | 73-68-7 | 5-Pyrimidinecarboxaldehyde, 4-amino-2-methyl- (6CI,7CI,8CI,9CI) | C6H7N3O | 137.14 | | |
| 26 | 73-70-1 | 2,?5-?Dimethyl-4-pyrimidinamine | C6H9N3 | 123.16 | | |
| 27 | 73-77-8 | 4-chlorophenylmagnesium bromide | C6H4BrClMg | 215.75796 | | |
| 28 | 73-78-9 | lidocaine hydrochloride | C14H23ClN2O | 270.8 | 80-82°C | |
| 29 | 73-80-3 | Benzenemethanaminium, 2-bromo-N,N-diethyl-N-methyl-, 4-methylbenzenesulfonate (1:1) | C12H19BrN.C7H7O3S | | | |
| 30 | 73-89-2 | 2-(phosphonooxy)acrylate | C3H4O6P- | 167.03 | | |
| 31 | 73-97-2 | 2,6-dioxo-3H-pyrimidine-4-carboxylate | C5H3N2O4- | | | |