File talk:Caffeine.svg

Molecules missing?
Is it intuitively obvious to chemistry types that there are C's at most vertices, and also a CH on the far left, in order to make up the C8H10N4O2 count? E.g. compare your picture with. (Er, wait, that one's wrong too??? Missing 2N. Perhaps see also instead...  at shopping link )  As a layman, I couldn't figure out why the molecule count wasn't right in your version. I'm not familiar with the editing tools for images, and may still need a commons account? Plus I wonder if the diagram obeys some convention for implied C and CH. --SportWagon (talk) 20:03, 21 October 2008 (UTC)
 * Answered at Talk:Caffeine. See Skeletal formula.--SportWagon (talk) 20:23, 21 October 2008 (UTC)

The answer is that, yes, there is a convention for drawing the chain/ring. the CH3 branches are shown in ful to avoid ambiguity. — Preceding unsigned comment added by 202.92.35.71 (talk) 13:00, 4 September 2011 (UTC)

Coloring?
Are the red and blue colors meant to indicate electronegativity? Or just "not carbons"? Or something else? 212.84.106.199 (talk) 20:49, 19 December 2009 (UTC)