Pyrazine
Order
877402-43-2
tert-Butyl 3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-carboxylate
Order
723286-77-9
Tert-butyl 2-(cyclopropanecarbonyl)-5,6-dihydroimidazo[1,2-a]pyrazine-7(8h)-carboxylate