1,3-DIFLUORO-4-NITRO-2-(TRIMETHYLSILYL)BENZENE

1,3-PHENYLENE DIISOCYANATE

1,3-DIMETHOXY-5-FLUOROBENZENE

1,3-DIMETHYL-1H-THIENO[2,3-C]PYRAZOLE-5-CARBONYL CHLORIDE

1,3-Dipropyl-7-methylxanthine

1,3-DITHIOLANE-1,1,3,3-TETRAOXIDE