| 514.79 | Acetoacetanilide | |
| 514.79 | N-acetoacetyl derivatives of cyclic amines | |
| 515.76 | Acetoguanamine | |
| 516.29 | Acetol | |
| 874.55 | Acetometers, non-electric | |
| 516.29 | Acetonaphthones | |
| 514.84 | Acetone cyanohydrin | |
| 553.2 | Acetone put up as nail polish remover | |
| 516.23 | Acetone, not put up as nail polish remover | |
| 514.84 | Acetonitrile | |
| 516.25 | Acetonylacetone | |
| 516.29 | Acetophenone | |
| 514.86 | Acetophenoxime | |
| 541.41 | Acetorphine (INN), not put up as medicaments | |
| 514.86 | Acetoxime | |
| 514.79 | Acet-p-phenetidide | |
| 513.77 | Acetyl bromide | |
| 575.51 | Acetyl cellulose, non-plasticized (excl. textile fibres) | |
| 575.52 | Acetyl cellulose, plasticized, in primary forms (excl. in sheets, films, rods or tubes) | |
| 513.77 | Acetyl chloride | |
| 516.29 | 7-Acetyl-6-ethyl-1,2,3,4-tetrahydro-1,1,4,4-tetramethylnaphthalene | |
| 516.25 | Acetylacetone | |
| 516.29 | Acetylcarbinol | |
| 514.81 | Acetylcholine | |
| 541.41 | Acetyldihydrocodeinone, not put up as medicaments | |
| 511.19 | Acetylene (excl. heavy acetylene) | |
| 522.1 | Acetylene black | |
| 525.91 | Acetylene, heavy | |
| 514.61 | Acetylmethadol (INN) | |
| 513.94 | Acetyl-o-cresotic acids and their salts and esters | |
| 516.29 | 2-Acetylphenanthrene | |
| 513.93 | o-Acetylsalicylic acid and its salts and esters | |
| 532.21 | Acetyltannin | |
| 523.73 | Acid carbonate (sodium hydrogencarbonate) | |
| 523.65 | Acid diphosphate | |
| 874.55 | Acidimeters (excl. laboratory glassware) | |
| 665.91 | Acidimeters, glass, laboratory (excl. those of group 874) | |
| 598.99 | Acids, fatty, industrial, dimerised, trimerized or esterified with amyl alcohol and subsequently epoxydized | |
| 541.49 | Aconitine, not put up as medicaments | |
| 081.19 | Acorns (excl. acorns roasted as a coffee substitute), whether or not pelletized | |