5,6-DIAMINO-2,4-DIHYDROXYPYRIMIDINE SULFATE

5,6-DICHLORO-2,3-DICYANOPYRAZINE

2,4,4,6-TETRAMETHYL-1-OXA-3-AZA-2-CYCLOHEXENE

ETHYL 5,6-DIMETHOXYINDOLE-2-CARBOXYLATE

3-AMINO-5,6-DIPHENYL-1,2,4-TRIAZINE

5,7-Dihydro-2-methylthieno[3,4-d]pyrimidine

5,8-DICHLORO-2-METHYL-4-QUINOLINOL

5,9-DIMETHYL-3-ETHYL-5'-PHENYL-3'-(4-SULFOBUTYL)OXATHIACARBOCYANINE BETAINE

5-[(2-CHLOROETHYL)THIO]-1,3,4-THIADIAZOLE-2-THIOL