6-Amino-5-formamido-uracil

6-Amino-5-formamido-uracil

N-(Ethoxycarbonyl)anthranilic acid

N-(Ethoxycarbonyl)anthranilic acid

2-Phenylhydrazono-2-cyanoacetamide

2-Phenylhydrazono-2-cyanoacetamide

2-[[4-Amino-6-(4-methylphenyl)-2-pteridinyl]amino]-ethanol hydrochloride

2-[[4-Amino-6-(4-methylphenyl)-2-pteridinyl]amino]-ethanol hydrochloride

3-Oximino-2-heptanone

3-Oximino-2-heptanone

1,3-Dimethyl-6-hydrazinouracil

1,3-Dimethyl-6-hydrazinouracil

2-Amino-4-isopropoxy-6-(methylamino)-5-nitroso-pyrimidine

2-Amino-4-isopropoxy-6-(methylamino)-5-nitroso-pyrimidine

4-Biphenylglyoxal

4-Biphenylglyoxal

1,3-Dimethyl-2-quinoxalinone

1,3-Dimethyl-2-quinoxalinone