Images should be uploaded in PNG or SVG format.In all cases the advice at WP:color should be followed. Within a given article, diagrams should be consistent, which means in most cases they should use black and white except as highlighting to emphasize a particular point in specific diagrams. Note, however, that the use of yellow ( ) for sulfur is not advised as it can cause accessibility problems on a white background. It is not necessary to color-code atoms according to element in structure drawings but if done the conventions of the Jmol scheme should be used. For articles on racemates, the stereochemistry should be depicted as undefined (straight and not wavy nor wedged bonds attached to the stereogenic center).
Information about stereocenters and stereoisomerism should be included if available (e.g.If labels for structures are desired, consider the use of bolded numerals, which are language-neutral.methyl groups at the end of a carbon chain.methyl groups attached to a ring or as branches in a longer carbon chain.The use of explicit methyl groups in the following cases is a stylistic choice, and both forms are generally acceptable on Wikipedia:.By default, “Ph” denotes phenyl and “X” halogen. The use of “Et”, “Pr”, etc., is discouraged.
This is to avoid confusion with “Me”, the German abbreviation for metal ( Metall). Methyl groups should be denoted with “CH 3”, not “Me”, unless they are bound to a heteroatom (for example, “NMe 2”).