| CAS Number | Name |
| 50-00-0 | Formaldehyde |
| 50-02-2 | Dexamethasone |
| 50-70-4 | Sorbitol |
| 513-77-9 | Barium carbonate |
| 52151-92-5 | Piperitol |
| 526-83-0 | (2R,3R)-2,3-Dihydroxybernsteinsaeure |
| 53306-54-0 | bis(2-propylheptyl) phthalate |
| 540-72-7 | Sodium sulfocyanate |
| 5421-46-5 | Ammonium Thioglycolate |
| 54451-25-1 | Cerium (III) carbonate hydrate |
| 546-93-0 | Magnesium Carbonate |
| 5471-51-2 | 4-(4-hydroxyphenyl)-2-butanone |
| 55-99-2 | 1,4-Butanediyl Bismethanethiosulfonate |
| 554-13-2 | Lithium carbonate (Li2CO3) |
| 56-81-5 | Glycerin |