4-Anilino-N-phenethylpiperidine (ANPP) CAS 21409-26-7 fentanyl precursor category 1 table I EU Scheduled Precursors INCB Red List UK Drug Precursors
4-Piperidone CAS 41661-47-6 fentanyl precursor category 1 table I DEA List I EU Scheduled Precursors INCB Red List
Acetic anhydride CAS 108-24-7 category 2A table I DEA List II EU Scheduled Precursors INCB Red List UK Drug Precursors
Anthranilic acid CAS 118-92-3 methaqualone precursor category 2B table II DEA List I EU Scheduled Precursors INCB Red List
Benzaldehyde CAS 100-52-7 amphetamine precursor non scheduled voluntary monitoring DEA List I EU Voluntary Monitoring List 2016
Benzyl chloride CAS 100-44-7 non scheduled voluntary monitoring DEA List II EU Voluntary Monitoring List 2016
Benzyl cyanide CAS 140-29-4 amphetamine precursor non scheduled voluntary monitoring DEA List I EU Voluntary Monitoring List 2016