Misuse of Drugs Act
Part II Class B Drugs
Source: L. A. King, Forensic Chemistry of Substance Misuse: A Guide to Drug Control, RSC Publishing, Cambridge, 2009
Amino-1-phenyl-1-propanone nucleus
2-Amino-1-phenyl-1-propanone

3D rendering of Cathinone
Cathinone

3D rendering of Diethylpropion
Diethylpropion

3D rendering of Pyrovalerone
Pyrovalerone

3D rendering of Bupropion
[Bupropion (above) is explicitly not captured by this clause]

3D rendering of 4-Methylmethcathinone; Mephedrone
4-Methylmethcathinone; Mephedrone, one of many new cathinone analogues this amendment adds to Class B.

3D rendering of Flephedrone
Flephedrone, one of many new cathinone analogues this amendment adds to Class B.

3D rendering of Methylone
Methylone, one of many new cathinone analogues this amendment adds to Class B.

3D rendering of Butylone
Butylone, one of many new cathinone analogues this amendment adds to Class B.

3D rendering of MDPV
MDPV, one of many new cathinone analogues this amendment adds to Class B.
Effective 16 Apr 2010, S.I. 2010/1207 added:
1(aa)
Any compound (not being Bupropion, Cathinone, Diethylpropion, Pyrovalerone or a compound for the time being specified in sub-paragraph (a) above) structurally derived from 2-Amino-1-phenyl-1-propanone by modification in any of the following ways, that is to say,
  1. by substitution in the phenyl ring to any extent with alkyl, alkoxy, alkylenedioxy, haloalkyl or halide substituents, whether or not further substituted in the phenyl ring by one or more other univalent substituents;
  2. by substitution at the 3-position with an alkyl substituent;
  3. by substitution at the nitrogen atom with alkyl or dialkyl groups, or by inclusion of the nitrogen atom in a cyclic structure.
Only a handful of the Cathinone analogues captured by this amendment are shown below. For a more comprehensive enumeration, I highly recommend Synchronium’s elegant depiction, an inspiring model of information design.
PubChem CID: 444

PubChem CID: 444; ChemSpider: 431; Drugs Forum: Bupropion; Wikipedia: Bupropion

CA: CDSA Schedule III Section 19 Cathinone
UN: Psychotropics Schedule I Cathinone
US: CSA Schedule I Section f Subsection 3 Cathinone
See also MDA Part III Class C Section 1(a) Cathinone
PubChem CID: 107786; ChemSpider: 96940; Erowid: Cathinone; Wikipedia: Cathinone

CA: CDSA Schedule IV Section 4 Diethylpropion
UN: Psychotropics Schedule IV Amfepramone (Diethylpropion)
US: CSA Schedule IV Section f Subsection 2 Diethylpropion
See also MDA Part III Class C Section 1(a) Diethylpropion
PubChem CID: 7029; ChemSpider: 6762; Wikipedia: Amfepramone

CA: CDSA Schedule IV Section 26 Pyrovalerone
UN: Psychotropics Schedule IV Pyrovalerone
US: CSA Schedule V Section d Subsection 1 Pyrovalerone
See also MDA Part III Class C Section 1(a) Pyrovalerone
PubChem CID: 14373; ChemSpider: 13733; Wikipedia: Pyrovalerone

EU: Substances Substances 4-Methylmethcathinone
US: CSA Schedule I Section d Subsection 36 4-Methylmethcathinone
UK: Previously at MDA Part II Class B Section 1(a) 4-Methylmethcathinone
PubChem CID: 45266826; ChemSpider: 21485694; Bluelight: Mephedrone; Drugs Forum: Mephedrone; Erowid: 4-Methylmethcathinone / Mephedrone; Wikipedia: Mephedrone

US: CSA Schedule I Section h Subsection 25 4-Fluoro-N-methylcathinone
PubChem CID: 49853406; ChemSpider: 21477355; Drugs Forum: Flephedrone; Erowid: 4-Fluoromethcathinone (4-FMC); Wikipedia: 4-Fluoromethcathinone

US: CSA Schedule I Section d Subsection 47 3,4-Methylenedioxy-N-methylcathinone and Section h Subsection 1 3,4-Methylenedioxy-N-methylcathinone
PubChem CID: 45789647; ChemSpider: 21106350; Bluelight: Methylone; Drugs Forum: Methylone; Erowid: Methylone; Wikipedia: Methylone

US: CSA Schedule I Section h Subsection 22 Butylone
PubChem CID: 56843046; ChemSpider: 21106270; Bluelight: Butylone; Drugs Forum: Butylone; Erowid: bk-MBDB; Wikipedia: Bk-MBDB

CA: CDSA Schedule I Section 17.1 Methylenedioxypyrovalerone
US: CSA Schedule I Section d Subsection 37 3,4-Methylenedioxypyrovalerone
PubChem CID: 20111961; ChemSpider: 16788110; Bluelight: MDPV; Drugs Forum: MDPV; Erowid: MDPV; Wikipedia: Methylenedioxypyrovalerone
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