1,2,3,4-Tetrahydro-6H-pyrimido[1,2-b]isoquinolin-6-one

1,2,3,4,4,5,6,7-OCTACHLOROBICYCLO(3.2.0)HEPTA-2,6-DIENE

1,3-DIMETHYL-TETRAHYDRO-IMIDAZO(4,5-D)IMIDAZOLE-2,5-DIONE

1,3-DIOXO-2-(4-PHENOXY-PH)2,3-DIHYDRO-1H-ISOINDOLE-5-CARBOXYLIC ACID BUTYL ESTER

1,3-DIOXO-2-PYRIDIN-3-YL-2,3-DIHYDRO-1H-ISOINDOLE-5-CARBOXYLIC ACID

1,3-Diphenyl-1H-pyrazol-4-ol

1,3-DIPHENYLURETIDINE-2,4-DIONE

1,2,6-TRIMETHYL-PYRIDINIUM, PERCHLORATE

1,3-benzodioxole-2-carboxylic acid

1,3-BENZOTHIAZOL-2-YL 3,4-DICHLOROBENZYL SULFIDE

1,3,5-Tribromo-2,4,6-trifluoro-benzene

1,3,5-TRIMETHYL-2-NITROBENZENE

1,3,5-TRIS(BENZYLOXY)-1,3,5-TRIAZINANE-2,4,6-TRIONE

1,3-BIS-(TRICHLOROMETHYL)-BENZENE

1,3-BIS(2-CHLOROPHENYL)UREA