| 1 | 663-08-1 | Propanoyl chloride, 2,3-dichloro-3,3-difluoro-2-nitro- | C3Cl3F2NO3 | 242.39 | | |
| 2 | 663-16-1 | 3β-[(2,6-Dideoxy-4-O-β-D-glucopyranosyl-β-D-ribo-hexopyranosyl)oxy]-14,16β-dihydroxy-5β,14β-card-20(22)-enolide | C35H54O13 | 682.8 | | |
| 3 | 663-17-2 | ANTI-(1S)-(-)-CAMPHORQUINONE 3-OXIME 9& | C10H15NO2 | 181.23 | 154-156°C(lit.) | |
| 4 | 663-20-7 | Phosphonous dichloride, (1,1,2,2-tetrafluoro-1,2-ethanediyl)bis- (9CI) | C2Cl4F4P2 | 303.77 | | |
| 5 | 663-35-4 | 4,4,5,5,5-Pentafluoro-3-Oxovaleric Acid Ethyl Ester | C7H7F5O3 | 234.12 | | |
| 6 | 663-41-2 | 2,2,3,3-TETRAFLUOROSUCCINONITRILE | C4F4N2 | 152.05 | | |
| 7 | 663-45-6 | 1,2-Cyclobutanedione,3,3,4,4-tetrafluoro- | C4F4O2 | 156.0352128 | | |
| 8 | 663-54-7 | Ethane, 1-chloro-1,2,2-trifluoro-1-methoxy-2-[(trifluoromethyl)thio]- | C4H3ClF6OS | 248.57 | | |
| 9 | 663-65-0 | 1-Propanamine, 2,2,3,3-tetrafluoro-, hydrochloride | C3H6ClF4N | 167.53 | | |
| 10 | 663-69-4 | 2,2,3,3-tetrafluoropropan-1-amine | C3H5F4N | 131.07 | | |
| 11 | 663-73-0 | 2,2,3,3-Tetrafluoropropionyl Chloride | C3HClF4O | 164.49 | | |
| 12 | 663-77-4 | N,N,N',N'-Tetramethyl-α,α-difluorosilanediamine | C4H12F2N2Si | 154.23 | | |
| 13 | 663-78-5 | Methyl2,3,3,3-tetrafluoro-2-(fluorosulfonyl)propionate | C4H3F5O4S | 242.12 | | |
| 14 | 663-81-0 | Intermedioside (8CI) | C30H42O10 | 562.65 | | |
| 15 | 663-93-4 | 6α,7α-Diacetoxy-4α,9-epoxy-15α-[(R)-2-methyl-1-oxobutoxy]-3β-[[(Z)-2-methyl-1-oxo-2-butenyl]oxy]cevane-4,14,16β,20-tetrol | C41H61NO13 | 775.93 | 235.0-235.3 °C (decomp) | |
| 16 | 663-95-6 | ACOVENOSIDE A | C30H46O9 | 550.68 | | |