dx2tq4

For methyl-substituted benzene derivatives

'', etc., are used as locants for substituents in the methyl groups. Note that the locant for the CH2 group of benzyl is

(see Rule A-13.3).

This HTML reproduction of Sections A, B and C of IUPAC "Blue Book" is as close as possible to the published version [see Nomenclature of Organic Chemistry, Sections A, B, C, D, E, F, and H, Pergamon Press, Oxford, 1979. Copyright 1979 IUPAC.] If you need to cite these rules please quote this reference as their source.

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