title: Is there an Unicode Symbol for Superscript comma?
body: <p>While making a translation to a YouTube video (translations can only be in Unicode, no other markup is possible as far as I know of), I stumbled across the concentration of H<sup>+</sup> in orange juice. It is supposed to be one times ten to the negative 3.5 molar.</p>
  
  <p>I'd like to write it down as "1·10<sup>-3,5</sup> M" (mind the comma, it is translated to dutch). The problem is that I can not find a superscript comma or even a superscript period between all 120,520 unicode graphical characters. </p>
  
  <p>Does someone have an idea on how to solve this?</p>