| CAS Number | Product Names |
| 12001-29-5 | Asbestos, chrysotile |
| 77536-67-5 | Asbestos, Anthophylite |
| 74469-00-4 | Augmentin |
| 1674-96-0 | Aturbane hydrochloride |
| 67-92-5 | Atumin |
| 51-55-8 | Atropine |
| 56-65-5 | Adenosine triphosphate |
| 123-77-3 | Azodicarbonamide |
| 12172-73-5 | ASBESTOS, AMOSITE |
| 1332-21-4 | Asbestos |
| 8052-42-4 | Asphalt |
| 130-01-8 | Aureine |
| 522-16-7 | Aurantin |
| 107290-05-1 | Auranthine |
| 34031-32-8 | Auranofin |
| 466-49-9 | Aspidospermine |
| 77536-68-6 | ASBESTOS, TREMOLITE |
| 38462-04-3 | Ascofuranone |
| 512-85-6 | Ascaridole |
| 17068-78-9 | Anthophyllite asbestos |
| 77536-66-4 | ASBESTOS, ACTINOLITE |
| 7784-42-1 | ARSINE |
| 63951-03-1 | Arsenoxide sodium |
| 1303-18-0 | Arsenopyrite |
| 14060-38-9 | ARSENIOUS ACID, SODIUM SALT |
| 7784-33-0 | Arsenic(II) bromide |
| 7440-38-2 | Arsenic |
| 13425-94-0 | Asalin |
| 71963-77-4 | Artemether |
| 538-03-4 | Arsphenoxide |
| 67360-94-5 | Arsine-tri-1-piperidinium chloride |
| 1327-53-3 | Arsenic(III) oxide |
| 8012-54-2 | Arsenic triiodide mixed with mercuric iodide |
| 7784-35-2 | Arsenous trifluoride |
| 88746-71-8 | Asta z 7557 |
| 67-99-2 | Gliotoxin |
| 1303-33-9 | Arsenic (III) sulfide |
| 1303-28-2 | ARSENIC PENTOXIDE |
| 7784-45-4 | ARSENIC IODIDE |
| 7631-89-2 | Arsenic acid, trisodium salt |
| 56320-22-0 | Arsenic disulfide |
| 8024-32-6 | Avocado oil |
| 479-20-9 | ATRANORIN |
| 5140-35-2 | Atheriline |
| 7784-34-1 | Arsenic chloride |
| 16830-15-2 | Asiaticoside |
| 22583-29-5 | as-Dimethylguanidine hydrochloride |
| 10103-60-3 | Arsenic acid, monosodium salt |
| 7784-41-0 | Arsenic acid, monopotassium salt |
| 10103-50-1 | ARSENIC ACID, MAGNESIUM SALT |
| 7645-25-2 | Arsenic acid, lead salt |
| 7774-41-6 | Arsenic acid, hemihydrate |
| 490-02-8 | Aspergillic acid |
| 22839-47-0 | Aspartame |
| 10048-95-0 | Arsenic acid, disodium salt, hepta hydrate |
| 7778-43-0 | Arsenic acid, disodium salt |
| 127-85-5 | ARSANILIC ACID, MONOSODIUM SALT |
| 98-50-0 | 4-Aminophenylarsonic acid |
| 63957-41-5 | Arsenic acid, aniline salt |
| 6018-32-2 | Arsacetin tetrahydrate |
| 585-54-6 | Arsacetin sodium salt |
| 71441-09-3 | Arotinoid ethyl ester |
| 71441-30-0 | Arotinoic methanol |
| 71441-28-6 | Arotinoic acid |
| 88845-25-4 | Aromatol |
| 81-04-9 | 1,5-Naphthalenedisulfonic acid |
| 5611-51-8 | Triamcinolone hexacetonide |
| 313-67-7 | Aristolochic acid |
| 67-78-7 | Triamcinolone diacetate |
| 76-25-5 | Triamcinolone acetonide |
| 64742-16-1 | Petroleum resins |
| 7440-37-1 | Argon |
| 113-80-4 | Argiprestocin |
| 113-79-1 | Argipressine |
| 30233-81-9 | Aresket 300 |
| 30233-80-8 | Areskap 100 |
| 63-75-2 | Arecoline |
| 63968-64-9 | Artemisinin |
| 61-94-9 | Arecoline hydrochloride |
| 300-08-3 | Arecoline hydrobromide |
| 499-04-7 | Arecaidine |
| 2096-42-6 | Aspiculamycin |
| 55028-70-1 | Arbaprostil |
| 1446-17-9 | Araten phosphate |
| 506-32-1 | Arachidonic acid |
| 9036-66-2 | ARABINOGALACTAN |
| 9000-01-5 | Arabic gum |
| 1937-37-7 | Direct Black 38 |
| 52-46-0 | APHOLATE |
| 50650-74-3 | APTROL SULFATE |
| 86-88-4 | ANTU |
| 641-81-6 | Apocholic acid |
| 500-55-0 | Apoatropine |
| 52659-57-1 | Aplysiatoxin |
| 13539-59-8 | Apazone |
| 24345-16-2 | Apamin |
| 9000-94-6 | ANTITHROMBIN III |
| 60-80-0 | Antipyrine |
| 520-07-0 | Antipyrine salicylate |
| 77824-43-2 | Antimonyl-7-formyl-8-hydroxyquinoline-5-sulphonate |