| 52-01-7 | Spironolactone | | 1 | | 2932.20 | 6 | Send  | 29554340.02 | |
| 52-21-1 | Prednisolone acetate | [2-[(8S,9S,10R,11S,13S,14S,17R)-11,17-dihydroxy-10,13-dimethyl-3-oxo-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-yl]-2-oxoethyl] acetate | 1 | | 2937.21 | 6 | Send  | 4099582.06 | |
| 52-28-8 | Codeine Phosphate | (4R,4aR,7S,7aR,12bS)-9-methoxy-3-methyl-2,4,4a,7,7a,13-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinoline-7-ol phosphoric acid | 1 | | 2939.11 | | Send  | 3109.84 | |
| 52-43-7 | Allobarbital | 5,5-diallylbarbituric acid | 1 | | 2933.53 | 9 | Send  | 6862.95 | |
| 52-49-3 | Trihexyphenidyl Hydrochloride | 1-cyclohexyl-1-phenyl-3-piperidin-1-ylpropan-1-ol;hydrochloride | 1 | | 2933.39 | | Send  | 5600288.18 | |
| 52-51-7 | Bronopol | 2-bromo-2-nitropropane-1,3-diol | 1 | | 2905.59 | | Send  | 1699065.80 | |
| 52-68-6 | Trichlorfon | 2,2,2-trichloro-1-dimethoxyphosphorylethanol | 1 | | 2931.90 | 3 ; 8 ; 13 | Send  | 11637664.82 | |
| 52-76-6 | Lynestrenol | (8R,9S,10R,13S,14S,17R)-17-ethynyl-13-methyl-2,3,6,7,8,9,10,11,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-17-ol | 1 | | 2937.23 | | Send  | 6511986.77 | |
| 52-86-8 | Haloperidol | 4-[4-(4-chlorophenyl)-4-hydroxypiperidin-1-yl]-1-(4-fluorophenyl)butan-1-one | 1 | | 2933.39 | 6 | Send  | 5241187.49 | |
| 52-89-1 | L-Cysteine hydrochloride | (2R)-2-amino-3-sulfanylpropanoic acid hydrochloride | 1 | | 2930.90 | | Send  | 13396603.62 | |