C9H10O5
# 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
