| 4-Bromo-1-chloro-2-(4-ethoxybenzyl)benzene | 461432-23-5 | | 2 |
| 4-Chloro-7H-pyrrolo[2,3-d]pyrimidine | 3680-69-1 | Intermediates | 2 |
| 4-Phenoxyphenylboronic Acid | 51067-38-0 | | 2 |
| 5-Fluorouracil | 51-21-8 | Cytostatic antibiotics | 2 |
| Abrocitnib | 1802446-37-1 | Protein kinase inhibitors | 2 |
| Acalabrutinib | 1420477-60-6 | | 2 |
| Acebrophylline | 96989-76-3 | Bronchodilators | 2 |
| Acetohydroxamic Acid | 546-88-3 | Other antibacterials | 2 |
| Activated charcoal | 64365-11-3 | Disinfectants | 2 |
| Ademetionine 1,4-Butanedisulfonate | 101020-79-5 | | 2 |
| Adenosine monophosphate | 61-19-8 | Immunostimulants | 2 |
| Aesculin | 66778-17-4 | Anticoagulant proteins | 2 |
| Afatinib intermediates | 162012-69-3 | | 2 |
| Albuterol Sulfate | 51022-70-9 | | 2 |
| Alcohol cetylicus et stearylicus | 68955-19-1 | Emollients and protectives | 2 |
| Alfatradiol | 57-91-0 | Dermatics | 2 |
| Alirocumab | 1245916-14-6 | PCSK9-inhibitors | 2 |
| Aluminium chloride hexahydrate | 7784-13-6 | Other dermatological agents | 2 |
| Aluminium potassium sulfate dodecahydrate | 7784-24-9 | Astringents | 2 |
| Aminohippuric acid | 61-78-9 | Diagnostic agents | 2 |
| Ammonium chloride | | Acidifying agents | 2 |
| Ampicillin sodium and Sulbactam sodium (2:1) | 69388-84-7 | | 2 |
| Anakinra | 143090-92-0 | Interleukin inhibitors | 2 |
| Anhydrous dextrose | | Dietary supplements | 2 |
| Antazoline | 91-75-8 | Antihistamines | 2 |
| Argireline | 616204-22-9 | Dermatics | 2 |
| Arnica mexico | | Herbal remedies | 2 |
| Asciminib | 149632-96-9 | Protein kinase inhibitors | 2 |
| Astaxanthin | 472-61-7 | Anticoagulants | 2 |
| Atezolizumab | 1380723-44-3 | Monoclonal antibodies | 2 |
| Atorvastatin Calcium | 134523-03-8 | | 2 |
| Avacopan | 1346623-17-3 | Enzyme Replacements/modifiers | 2 |
| Avatrombopag | 570406-98-3 | Anti-infective Agents | 2 |
| Avobenzone | 70356-09-1 | | 2 |
| Bacampicillin | 50972-17-3 | Penicillins | 2 |
| Barbexaclone | 4388-82-3 | Antiepileptics | 2 |
| Barnidipine | 104713-75-9 | Calcium Channel Blockers | 2 |
| Benzydamine | 642-72-8 | NSAIDs | 2 |
| Beta-Alanine | 107-95-9 | Amino acids | 2 |
| Beta-Carotene | 7235-40-7 | | 2 |