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 Definition The molecule R1AOOR2 where A is an atom and R1 and R2 are molecular groups. [d] [e]
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 Workgroup categories Chemistry and Food Science [Categories OK]
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Parent Article

In the Citizendium:Ester/Related_Articles I've listed Chemistry as the parent topic. Can anyone suggest a more specific parent? Thanks, ... Peter Lyall Easthope 17:44, 24 November 2008 (UTC)

Parent topics

How about Organic chemistry Fatty acid chemistry

Not all esters are organic--Wikipedia gives the example of a phosphoric acid ester. Not every ester can be derived from a fatty acid. Peter Lyall Easthope 23:24, 24 November 2008 (UTC)

What is a half-ester?

David E. Volk 14:40, 25 November 2008 (UTC)

David, that is precisely the question which turned up here and prompted me to insert the term in the Related Articles. As far as I can tell it is an ester according to my definition where R2 is as small as possible without being H; ie. R2=C00H. Reference [[1]]. Investigating further, Peter Lyall Easthope 19:50, 27 November 2008 (UTC)
It would seem to be a shorthand colloquism for a half esterified dicarboxylic acid from the reference listed above. I am not sure that it is a "real" chemical term widely used. David E. Volk 00:42, 28 November 2008 (UTC)
Good insight! We got the colloquialism, but not the "half esterified dicarboxylic acid". So should CZ include it or not? Thanks, Peter Lyall Easthope 18:43, 28 November 2008 (UTC)
And the IUPAC name for a "half-ester" would be carboxyl-ester? Peter Lyall Easthope 20:37, 28 November 2008 (UTC)

Added a sentence to intro

I added to the intro to help non-chemists like me. Please correct if I did this in error. - Robert Badgett 15:56, 3 January 2009 (UTC)

Robert, thanks; seems good to me. David Volk is a better authority. ...Peter Lyall Easthope 15:34, 6 January 2009 (UTC)

Definition in introduction

"... an ester is a chemical compound that contains a carbonyl functionality (C=O) attached to an alkoxide." And what is an alkoxide? The word should link to an explanation. Regards, ... Peter Lyall Easthope 15:12, 9 August 2012 (UTC)