C4H6N2O2
# C4H6N2O2

The molecular formula $C_4H_6N_2O_2$ 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
