ETHYL 2-(3-HYDROXY-2-OXOPYRAZIN-1(2H)-YL)ACETATE

Ethyl 2-(2,3-dioxo-3,4-dihydropyrazin-1(2H)-yl)acetate

(3-Hydroxy-2-oxo-2H-pyrazin-1-yl)-acetic acid ethyl ester