(thing) by jafuser Wed Sep 27 2000 at 2:19:29
Known commonly as vinegar. Does somewhat interesting things when mixed with sodium bicarbonate (baking soda).

structural formula of acetic acid: 

     H        O
      \      //          acetic acid (vinegar)
  H -- C -- C            (CH3CO2H)
      /      \
     H        O -- H

I like it!