Cat 1 Precursor List
Drug Precursor List
Those substances currently classified as Category 1 Drug Precursors are listed below:
| Category 1 Drug Precursors* | Substance CN Code |
| Ephedrine | 2939 4100 |
| Ergometrine | 2939 6100 |
| Ergotamine | 2939 6200 |
| Lysergic Acid | 2939 6300 |
| BMK(1-phenyl-2-propanone) | 2914 3100 |
| Piperonal | 2932 9300 |
| Pseudoephedrine | 2939 4200 |
| N-acetylanthranilic acid | 2924 2300 |
| PMK (3-4 methylenedioxy-phenylpropan-2-one) | 2932 9200 |
| Isosafrole | 2932 9100 |
| Safrole | 2932 9400 |
| Norephedrine | 2939 4900 |
| APAAN | 2926 9095 |
*Taken from Home Office Guidance