How do I name the IUPAC name for:


I thought it is 2-hydroxypropane-1,3-dicarboxylic acid,

but compared to Citric acid whose IUPAC name is:

2-hydroxypropane-1,2,3-tricarboxylic acid

we do not count the carbon atoms attached to the carboxyl group in this case.

So what do we do with COOH-CH(OH)-COOH then?

and COOH-CH(OH)-(CH2)2-COOH?

First time user, appreciate a lot.

  • $\begingroup$ Wikipedia said this: 2-Hydroxypropanedioic acid $\endgroup$ Jul 31 at 4:30
  • 1
    $\begingroup$ Or genericalily, 2-hydroxymalonic acid. Or more generically, hydroxymalonic acid because there is only one place to substitute thw hydroxyl group., $\endgroup$
    – user55119
    Jul 31 at 14:34
  • $\begingroup$ @user55119 for generic name you can use tartronic acid rather than a malonic acid derivative. $\endgroup$
    – Andrew
    Jul 31 at 21:28
  • $\begingroup$ @Andrew: I learn something everyday. Who knew? You did! $\endgroup$
    – user55119
    Aug 1 at 16:15


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