| 1 | 646-00-4 | manganese dilinoleate | C36H62MnO4 | 613.813129 | | |
| 2 | 646-01-5 | 3-(Methylthio)propionic acid | C4H8O2S | 120.17 | 16°C | |
| 3 | 646-02-6 | Aminoethyl nitrate | C2H6N2O3 | 106.08 | | |
| 4 | 646-03-7 | 3-aminopropanenitrile hydrochloride | C3H7ClN2 | 106.55 | | |
| 5 | 646-04-8 | trans-2-Pentene | C5H10 | 70.13 | -140 °C (lit.) | 203 mg/kg at 25 °C (shake flask-GC, McAuliffe, 1966) |
| 6 | 646-05-9 | pent-1-en-3-yne | C5H6 | 66.1 | -113°C (estimate) | |
| 7 | 646-06-0 | 1,3-Dioxolane | C3H6O2 | 74.08 | -95 °C (lit.) | SOLUBLE |
| 8 | 646-07-1 | 4-methylvaleric acid | C6H12O2 | 116.16 | -35 °C | INSOLUBLE |
| 9 | 646-08-2 | N,N'-(dithiodiethylene)bis[3-aminopropionamide] | C10H22N4O2S2 | 294.43728 | | |
| 10 | 646-12-8 | 1,3-Oxathiane | C4H8OS | 104.17 | | |
| 11 | 646-13-9 | isobutyl stearate | C22H44O2 | 340.58 | about 20° | |
| 12 | 646-14-0 | 1-Nitrohexane | C6H13NO2 | 131.17 | | |
| 13 | 646-17-3 | 6-Octen-1-ol, 7-methyl- | C9H18O | 142.24 | | |
| 14 | 646-19-5 | 1,7-Diaminoheptane | C7H18N2 | 130.23 | 26-29 °C (lit.) | Soluble in water, ethanol, acetone, ether and benzene. |
| 15 | 646-20-8 | 1,5-Dicyanopentane | C7H10N2 | 122.17 | -31.4°C | Insoluble in water |
| 16 | 646-23-1 | ALYSSIN | C7H13NOS2 | 191.31 | | |
| 17 | 646-24-2 | 1,9-Nonanediamine | C9H22N2 | 158.28 | 36-40 | |
| 18 | 646-25-3 | 1,10-Diaminodecane | C10H24N2 | 172.31 | 62 °C | 5.9g/L at 20℃ |
| 19 | 646-28-6 | tridecyl aldoxime | C13H27NO | 213.35958 | | |
| 20 | 646-29-7 | STEARATE | C18H35O2 | | | |
| 21 | 646-30-0 | nonadecanoic acid | C19H38O2 | 298.5 | 68-70°C(lit.) | |
| 22 | 646-31-1 | Tetracosane | C24H50 | 338.65 | 49-52°C(lit.) | Insoluble in water. |
| 23 | 646-34-4 | guanidine | CH5N3 | 157.15 | 93 °C | |
| 24 | 646-55-9 | 2-Propanamine, N,N-difluoro-2-methyl- | C4H9F2N | 109.12 | | |
| 25 | 646-58-2 | trifluoromethanesulphonic acid, compound with triethylamine (1:1) | C6H15N.CHF3O3S | 251.27 | | |
| 26 | 646-60-6 | Ethane, 1,1-dichloro-2,2,2-trifluoro-1-iodo- | C2Cl2F3I | 278.83 | | |
| 27 | 646-62-8 | Plumbane, trimethyl(trifluoromethyl)- | C4H9F3Pb | 321.31 | | |
| 28 | 646-63-9 | 2-CHLOROTETRAFLUOROETHYLSULPHURPENTAFLUORIDE | C2ClF9S | 262.52 | -113 °C | |
| 29 | 646-71-9 | Phosphinic chloride, P,P-bis(trifluoromethyl)- | C2ClF6OP | 220.44 | | |
| 30 | 646-83-3 | Perfluoro-p-ethylcyclohexylsulfonic acid | C8HF15O3S | 462.13 | | |
| 31 | 646-87-7 | Phosphonic acid, [2,2,2-trifluoro-1-methyl-1-(trifluoromethyl)ethyl]-, dimethyl ester (9CI) | C6H9F6O3P | 274.1 | | |
| 32 | 646-97-9 | 2-Allylhexafluoroisopropanol | C6H6F6O | 208.1 | | |