title: C9H10O5
text: # C9H10O5
  
  The molecular formula $C_9H_{10}O_5$ (molar mass: 198.17 g/mol, exact mass 198.052823) may refer to:
  
  * Ethyl gallate, an antioxidant food additive
  * Syringic acid, a polyphenol
  * Vanillylmandelic acid, a catecholamine
  