N-4-硝基苯基胍

9-methylsulfanyl-benzo[5,6]chromeno[2,3-d]pyrimidin-12-one

2-胍基琥珀酸

4-methyl-2-methylsulfanyl-6-(trifluoromethyl)pyrimidine

2-[2-(1,3-dimethyl-2,6-dioxopurin-7-yl)ethyl]guanidine,sulfuric acid