4-Amino-6-chloropyrimidine-5-car... 

2,4,6-Trichloro-5-nitropyrimidin... 

4-Amino-2-chloro-5-pyrimidinecar... 

6-Hydroxy-5-methylpyrimidine-4-c... 

Methyl-5-bromo-2,6-dioxo-1,2,3,6... 

2-Amino-4-methylpyrimidine---CAS... 

2-Chloro-5-phenylpyrimidine---CA... 

tert-Butyl-4-chloro-7,8-dihydrop... 

4-Chloro-6-iodo-7H-pyrrolo[2,3-d... 

2,4-Dichloro-6,7-dihydro-5H-pyrr... 

Uracil---CAS-NO.:66-22-8 

5,6-Diamino-1,3-dipropyl-2,4(1H,... 

6-Benzyl-2,4-dichloro-5,6,7,8-te... 

4-Chloropyrido[2,3-d]pyrimidine-... 

2-Amino-4,6-dihydroxypyrimidine-... 

2,4-Dichloro-6-methylpyrimidine-... 

4,5,6-Triaminopyrimidine---CAS-N... 

4,6-Dichloro-5-nitro-2-propylthi... 

5-Iodo-1,3-dimethylpyrimidine-2,... 

5-Cyano-2-hydroxypyrimidine---CA... 

4-Chloropyrido[3,2-d]pyrimidine-... 

4-Amino-5-bromopyrrolo[2,3-d]pyr... 

4-Chloro-7H-pyrrolo[2,3-d]pyrimi... 

2,4,5-Trichloro-7H-pyrrolo[2,3-d... 

2-(Methylamino)pyrimidine-4-carb... 

4,5-Diaminouracil---CAS-NO.:3240... 

2-Chlorothieno[2,3-d]pyrimidine-... 

5-Cyanopyrimidine---CAS-NO.:4080... 

5-Iodo-4-methylpyrimidine---CAS-... 

4-Bromo-6-hydroxypyrimidine---CA... 

2-Ethoxy-4,6-dichloropyrimidine-... 

Methyl-4,6-dimethylpyrimidine-5-... 

5-Bromo-4,6(1H,5H)-pyrimidinedio... 

N-Boc-5-Bromo-2-pyrimidinemethan... 

5-Bromo-2-hydroxypyrimidine---CA... 

4-Amino-6-hydroxy-2-mercaptopyri... 

7-Amino-4,5-dihydro-5-oxo-pyrazo... 

Barbituric-acid---CAS-NO.:67-52-... 

4,6-Dichloro-2-methylsulfanylpyr... 

2-Methoxypyrimidine-4,6-diol---C... 

2-Methylthio-4,6-pyrimidinedione... 

2-Amino-4,6-dimethylpyrimidine--... 

2-Hydroxy-4-hydrazinopyrimidine-... 

4-Chloro-5,6-dimethylthieno[2,3-... 

2-Amino-4-iodopyrimidine---CAS-N...