Part IV of the MDA says ‘“Coca leaf” means the leaf of any plant of the genus Erythroxylon from whose leaves cocaine can be extracted either directly or by chemical transformation.’

The systematic name given in the amendment, were it strictly following the rules, would employ braces {or ‘curly brackets’} as the outermost enclosing marks. See IUPAC. Nomenenclature of Organic Chemistry, Royal Society of Chemistry, 2013. See P-16.5 Enclosing Marks, p. 113.

The systematic name given in the original, withdrawn amendment is wrong in two ways, one of them fatal. It does not describe the intended substance, nor any other known or possible structure. The amended version fixes the fatal mistake but, strictly speaking, is still wrong.

The systematic name given in the original, withdrawn amendment is wrong in two ways, one of them fatal. It does not describe the intended substance, nor any other known or possible structure. The amended version fixes the fatal mistake but, strictly speaking, is still wrong.

The systematic name given in the original, withdrawn amendment is fatally wrong. It does not describe the intended substance, nor any other known or possible structure. The systematic name given in the amended version—and I caution you this is only my most guarded, inexpert opinion—appears correct. Very good!

The systematic name given in the original, withdrawn amendment is wrong in two ways, one of them fatal. It does not describe the intended substance, nor any other known or possible structure. The amended version fixes the fatal mistake but, strictly speaking, were it following the rules, would employ square brackets, not braces {‘curly brackets’} as the outermost enclosing marks. See IUPAC. Nomenenclature of Organic Chemistry, Royal Society of Chemistry, 2013. See P-16.5 Enclosing Marks, p. 113.

Section 2 specifically excludes Dextromethorphan (a stereoisomer of Levomethorphan) from this Schedule.

Section 2 specifically excludes Dextrorphan (a stereoisomer of Levorphanol) from this Schedule.

Part IV of the MDA says ‘“Raw opium” includes powdered or granulated opium but does not include medicinal opium.’

Part IV of the MDA says ‘“Medicinal opium” means raw opium which has undergone the process necessary to adapt it for medicinal use in accordance with the requirements of the British Pharmacopoeia, whether it is in the form of powder or is granulated or is in any other form, and whether it is or is not mixed with neutral substances.’

Part IV of the MDA says ‘“Poppy-straw” means all parts, except the seeds, of the opium poppy, after mowing.’

Part IV of the MDA says ‘“Concentrate of poppy-straw” means the material produced when poppy-straw has entered into a process for the concentration of its alkaloids.’

Part IV of the MDA says ‘“Opium poppy” means the plant of species Papaver somniferum L.’

The systematic name given in the original, withdrawn amendment is fatally wrong. It does not describe the intended substance, nor any other known or possible structure.