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category 1 43 EU Scheduled Precursors 43 UK Drug Precursors 39 INCB Red List 28 table I 28 DEA List I 23 amphetamine precursor 13 designer precursor 11 category 1 NI 9 NI 8 BAFA 8 cathinone precursor 8 DEA Special Surveillance List 7 fentanyl precursor 7 MDMA precursor 7 added 2026 4 chloroephedrine 4 LSD precursor 3 methaqualone precursor 1 2C precursor 0 allotrope 0 apinaca precursor 0 cannabinoid precursor 0 catalyst 0 category 2A 0 category 2B 0 category 3 0 cocaine reagent 0 DEA List II 0 EU Voluntary Monitoring List 2016 0 gas 0 GHB precursor 0 ketamine precursor 0 metal 0 nitazene precursor 0 non scheduled 0 PCP precursor 0 reagent 0 reducing agent 0 solvent 0 table II 0 Voluntary monitoring 0 voluntary monitoring 0

Structure of (1R,2R)-(-)-chloropseudoephedrine

(1R,2R)-(-)-chloropseudoephedrine

CAS 771434-80-1

chloroephedrine category 1 EU Scheduled Precursors UK Drug Precursors

Structure of (1R,2S)-(-)-chloroephedrine

(1R,2S)-(-)-chloroephedrine

CAS 110925-64-9

chloroephedrine category 1 EU Scheduled Precursors UK Drug Precursors

Structure of (1S,2R)-(+)-chloroephedrine

(1S,2R)-(+)-chloroephedrine

CAS 1384199-95-4

chloroephedrine category 1 EU Scheduled Precursors UK Drug Precursors

Structure of (1S,2S)-(+)-chloropseudoephedrine

(1S,2S)-(+)-chloropseudoephedrine

CAS 73393-61-0

chloroephedrine category 1 EU Scheduled Precursors UK Drug Precursors

Structure of 1-(4-chlorophenyl)propan-1-one

1-(4-chlorophenyl)propan-1-one

CAS 6285-05-8

cathinone precursor added 2026 category 1 category 1 NI NI BAFA

Structure of 1-(4-methylphenyl)propan-1-one

1-(4-methylphenyl)propan-1-one

CAS 5337-93-9

cathinone precursor added 2026 category 1 category 1 NI BAFA DEA Special Surveillance List

Structure of 1-Phenyl-2-propanone (BMK/P2P)

1-Phenyl-2-propanone (BMK/P2P)

CAS 103-79-7

amphetamine precursor category 1 table I EU Scheduled Precursors INCB Red List UK Drug Precursors

Structure of 1-boc-4-AP

1-boc-4-AP

CAS 125541-22-2

fentanyl precursor category 1 table I DEA List I EU Scheduled Precursors INCB Red List

Structure of 1-boc-4-piperidone

1-boc-4-piperidone

CAS 79099-07-3

fentanyl precursor category 1 table I DEA List I EU Scheduled Precursors INCB Red List

Structure of 2-Bromo-1-(4-chlorophenyl)propan-1-one

2-Bromo-1-(4-chlorophenyl)propan-1-one

CAS 877-37-2

cathinone precursor category 1 category 1 NI NI BAFA DEA Special Surveillance List

Structure of 2-Bromo-1-(4-methylphenyl)propan-1-one

2-Bromo-1-(4-methylphenyl)propan-1-one

CAS 1451-82-7

cathinone precursor category 1 category 1 NI NI BAFA DEA Special Surveillance List

Structure of 2-bromo-3'-chloropropiophenone

2-bromo-3'-chloropropiophenone

CAS 34911-51-8

cathinone precursor added 2026 category 1 category 1 NI NI BAFA

Structure of 2-bromo-3'-methylpropiophenone

2-bromo-3'-methylpropiophenone

CAS 1451-83-8

cathinone precursor added 2026 category 1 category 1 NI NI BAFA

Structure of 3'-chloropropiophenone

3'-chloropropiophenone

CAS 34841-35-5

cathinone precursor category 1 category 1 NI NI BAFA EU Scheduled Precursors

Structure of 3'-methylpropiophenone

3'-methylpropiophenone

CAS 51772-30-6

cathinone precursor category 1 category 1 NI NI BAFA EU Scheduled Precursors

Structure of 3,4-MDP-2-P methyl glycidate

3,4-MDP-2-P methyl glycidate

CAS 13605-48-6

MDMA precursor designer precursor category 1 table I DEA List I EU Scheduled Precursors

Structure of 3,4-MDP-2-P methyl glycidic acid (PMK glycidic acid)

3,4-MDP-2-P methyl glycidic acid (PMK glycidic acid)

CAS 2167189-50-4

MDMA precursor designer precursor category 1 table I DEA List I EU Scheduled Precursors

Structure of 3,4-MDP-2-P methyl glycidic acid ethyl ester

3,4-MDP-2-P methyl glycidic acid ethyl ester

CAS 28578-16-7

MDMA precursor designer precursor category 1 table I DEA Special Surveillance List EU Scheduled Precursors

Structure of 3,4-Methylenedioxyphenyl-2-propanone (PMK/MDP2P)

3,4-Methylenedioxyphenyl-2-propanone (PMK/MDP2P)

CAS 4676-39-5

MDMA precursor category 1 table I DEA List I EU Scheduled Precursors INCB Red List

Structure of 4-Anilino-N-phenethylpiperidine (ANPP)

4-Anilino-N-phenethylpiperidine (ANPP)

CAS 21409-26-7

fentanyl precursor category 1 table I EU Scheduled Precursors INCB Red List UK Drug Precursors

Structure of 4-Piperidone

4-Piperidone

CAS 41661-47-6

fentanyl precursor category 1 table I DEA List I EU Scheduled Precursors INCB Red List

Structure of Diethyl (phenylacetyl)propanedioate (DEPAPD)

Diethyl (phenylacetyl)propanedioate (DEPAPD)

CAS 20320-59-6

amphetamine precursor designer precursor category 1 DEA Special Surveillance List EU Scheduled Precursors UK Drug Precursors

Structure of Ephedrine

Ephedrine

CAS 299-42-3

amphetamine precursor category 1 table I DEA List I EU Scheduled Precursors INCB Red List

Structure of Ergometrine

Ergometrine

CAS 60-79-7

LSD precursor category 1 table I DEA List I EU Scheduled Precursors INCB Red List