| 1 | 683-08-9 | diethyl methylphosphonate | C5H13O3P | 152.13 | | Miscible with water. |
| 2 | 683-10-3 | N-Dodecyl-N,N-Dimethylglycine | C16H33NO2 | 271.45 | | 464g/L at 25℃ |
| 3 | 683-16-9 | Phosphinic chloride, dibutyl- | C8H18ClOP | 196.654681 | | |
| 4 | 683-18-1 | Dibutyltin dichloride | C8H18Cl2Sn | 303.84 | 39 °C | 320 mg/L, hydrolises in hot water |
| 5 | 683-19-2 | dioctylphosphinic acid | C16H35O2P | 290.42 | | |
| 6 | 683-25-0 | Methyl propyl methylphosphonate | C5H13O3P | 152.13 | | |
| 7 | 683-32-9 | Phosphonic acid, methyl-, butyl methyl ester | C6H15O3P | 166.16 | | |
| 8 | 683-43-2 | Dibromoethylarsine | C2H5AsBr2 | 263.79 | | |
| 9 | 683-45-4 | Dimethylcyanoarsine | C3H6AsN | 131.01 | | |
| 10 | 683-50-1 | CHLOROPROPANAL | C3H5ClO | 92.52 | | |
| 11 | 683-51-2 | 2-chloroacrolein | C3H3ClO | 90.51 | | |
| 12 | 683-51-2 | 2-chloroprop-1-en-1-one | C3H3ClO | | | |
| 13 | 683-53-4 | 2-Bromo-1,1-dichloroethane | C2H3BrCl2 | 177.86 | | |
| 14 | 683-55-6 | Carbonocyanidic fluoride | C2FNO | 73.0259032 | | |
| 15 | 683-56-7 | Carbonocyanidothioicfluoride (9CI) | C2FNS | 89.0915032 | | |
| 16 | 683-57-8 | 2-Bromoacetamide | C2H4BrNO | 137.96 | 87-91°C(lit.) | |
| 17 | 683-58-9 | N-hydroxyacetoimidoyl chloride | C2H4ClNO | 93.51 | -3 °C | |
| 18 | 683-60-3 | Sodium isopropoxide | C3H7NaO | 82.08 | 70-75°C | |
| 19 | 683-62-5 | O-Carbamoylhydroxylamine | CH4N2O2 | 76.05 | | |
| 20 | 683-63-6 | Carbamothioic acid, O-methyl ester | C2H5NOS | 91.1322 | | |
| 21 | 683-68-1 | 1,2-DIBROMO-1,2-DICHLOROETHANE | C2H2Br2Cl2 | 256.75 | -27 °C | |
| 22 | 683-70-5 | 3-Buten-2-one, 3-chloro- | C4H5ClO | 104.53 | | |
| 23 | 683-72-7 | 2,2-Dichloroacetamide | C2H3Cl2NO | 127.96 | 98-100°C(lit.) | soluble |
| 24 | 683-73-8 | ETHYLENE-D4 | C2D4 | 32.08 | −169°C(lit.) | |
| 25 | 683-78-3 | Lithium, (trifluoroethenyl)- | C2F3Li | 87.9576096 | | |
| 26 | 683-81-8 | DIFLUOROMETHYLDIMETHYLAMINE | C3H7F2N | 95.09 | | |
| 27 | 683-82-9 | Carbamothioic fluoride, dimethyl- | C3H6FNS | 107.1498432 | | |
| 28 | 683-85-2 | Dimethylaminodichlorophosphine | C2H6Cl2NP | 145.96 | | Reacts with water. |
| 29 | 683-92-1 | 2-BROMO-3-CHLORO-1,1,1-TRIFLUOROPROPANE | C3H3BrClF3 | 211.41 | | |
| 30 | 683-94-3 | 1,1,1-TRIFLUORO-2-BUTYLAMINE | C4H8F3N | 127.1082296 | | |
| 31 | 683-98-7 | METHYL BROMODIFLUOROACETATE | C3H3BrF2O2 | 188.96 | | |