C4H6N2O2

The molecular formula C4H6N2O2 may refer to:


 * Cyanoalanine, an uncommon amino acid
 * Dihydrouracil, an intermediate in the catabolism of uracil
 * 2,5-Diketopiperazine
 * Ethyl diazoacetate, a reagent used in organic chemistry
 * Muscimol, the major psychoactive alkaloid present in many mushrooms of the genus Amanita