氨基硫脲

乙醛酸

3-疏基-5-氧代-4,5-二氢-1,2,4-三嗪-6-羧酸

1,2,4-Triazin-5(2H)-one, 3-(2-propyn-1-ylthio)-

(E)-methyl 2-(2-carbamothioylhydrazono)acetate