| 1 | 542-02-9 | 6-methyl-1,3,5-triazine-2,4-diyldiamine | C4H7N5 | 125.13 | 274-276°C(lit.) | 11.2g/L at 20℃ |
| 2 | 542-05-2 | 1,3-Acetonedicarboxylic acid | C5H6O5 | 146.1 | 133 °C (dec.) (lit.) | soluble |
| 3 | 542-06-3 | 4-(Dimethylamino)-3-hydroxybutyric acid | C6H13NO3 | 147.17 | 145-147 °C(Solv: ethyl acetate (141-78-6)) | |
| 4 | 542-07-4 | Malonuric Acid | C4H6N2O4 | 146.1 | | |
| 5 | 542-08-5 | Isopropyl acetoacetate | C7H12O3 | 144.17 | -27°C | Slightly miscible with water. |
| 6 | 542-10-9 | ethylidene di(acetate) | C6H10O4 | 146.14 | 18.85°C | Slightly soluble in water |
| 7 | 542-11-0 | anilinium bromide | C6H8BrN | 174.04 | 285°C(dec.)(lit.) | Soluble in water |
| 8 | 542-13-2 | ANILINE HYDROFLUORIDE | C6H8FN | 113.14 | | |
| 9 | 542-14-3 | ANILINE ACETATE | C8H11NO2 | 153.17844 | 87 °C | |
| 10 | 542-15-4 | ANILINE NITRATE | C6H8N2O3 | 156.14 | 190°C (rough estimate) | |
| 11 | 542-16-5 | Aniline sulfate | C12H16N2O4S | 284.33 | | Soluble in water |
| 12 | 542-18-7 | Cyclohexyl chloride | C6H11Cl | 118.6 | -44 °C (lit.) | 0.02 g/L (20 ºC) |
| 13 | 542-27-8 | PYRIMIDIN-4-OL | C4H4N2O | 96.09 | | |
| 14 | 542-28-9 | Delta-Valerolactone | C5H8O2 | 100.12 | -13 °C | miscible |
| 15 | 542-29-0 | tetrahydro-4H-1,3,5-oxadiazin-4-one | C3H6N2O2 | 102.09 | | |
| 16 | 542-32-5 | DL-2-Aminoadipic acid | C6H11NO4 | 161.16 | 196-198°C(lit.) | Soluble in water (2.2 mg/ml at 20°C), 1 M HCl (50 mg/ml), ethanol (slightly), ether (slightly), and 80% formic acid (25 mg/ml). |
| 17 | 542-37-0 | tert-amyl isovalerate | C10H20O2 | 172.26 | -68.47°C (estimate) | |
| 18 | 542-40-5 | NORBIXIN(P)(PLEASE CALL) | | | | |
| 19 | 542-41-6 | 1-hexene | | | | |
| 20 | 542-42-7 | Palmitate (calcium salt) (Calcium palmitate) | C32H62CaO4 | 550.9 | | |
| 21 | 542-44-9 | MONOPALMITIN | C19H38O4 | 330.5 | 75 °C | |
| 22 | 542-46-1 | CIVETONE | C17H30O | 250.42 | 31-32° | |
| 23 | 542-47-2 | Tuberculostearic Acid | C19H38O2 | 298.5 | 20-21 °C | |
| 24 | 542-50-7 | Ditridecyl Ketone | C27H54O | 394.72 | 78℃ | |
| 25 | 542-51-8 | 1,3-Bis(4-fluorobutyl)urea | C9H18F2N2O | 208.25 | | |
| 26 | 542-52-9 | Dibutyl carbonate | C9H18O3 | 174.24 | <25 °C | |
| 27 | 542-53-0 | Ethylglycocoll hydrochloride | C4H9NO2.HCl | 139.58 | | |
| 28 | 542-54-1 | ISOCAPRONITRILE | C6H11N | 97.16 | -51° | |
| 29 | 542-55-2 | isobutyl formate | C5H10O2 | 102.13 | -96 °C | Soluble in water |
| 30 | 542-56-3 | Isobutyl nitrite | C4H9NO2 | 103.12 | | |
| 31 | 542-58-5 | 2-chloro ethyl acetate | C4H7ClO2 | 122.55 | | Insoluble in water |
| 32 | 542-59-6 | 2-Hydroxyethyl acetate | C4H8O3 | 104.1 | | Completely miscible in water |
| 33 | 542-62-1 | Barium cyanide | C2BaN2 | | | |
| 34 | 542-62-1 | BARIUM CYANIDE | C2BaN2 | 189.36 | | 80.0 g/100mL H2O (14°C) [CRC10]; soluble alcohol [HAW93] |
| 35 | 542-63-2 | diethylberyllium | C4H10Be | 67.134382 | 12°C | |
| 36 | 542-68-7 | Butyramide | | | | |
| 37 | 542-69-8 | 1-Iodobutane | C4H9I | 184.02 | −103°C(lit.) | Insoluble in water. |
| 38 | 542-75-6 | 1,3-Dichloropropene | C3H4Cl2 | 110.97 | -60 °C | <0.01 g/100 mL at 16.5 ºC |
| 39 | 542-76-7 | 3-chloropropionitrile | C3H4ClN | 89.52 | -52--50 °C (lit.) | 4.50 g/100 mL |
| 40 | 542-78-9 | propanedial | C3H4O2 | 72.06 | 72-74° | |
| 41 | 542-81-4 | 2-Chloroethyl methyl sulfide | C3H7ClS | 110.61 | | |
| 42 | 542-83-6 | Cadmium cyanide | C2CdN2 | | | |
| 43 | 542-83-6 | CADMIUM CYANIDE | C2CdN2 | 164.45 | decomposes at >200℃ [CRC10] | 1.71g/100mL H2O (15°C) [MER06] |
| 44 | 542-84-7 | COBALT CYANIDE | C2CoN2 | 110.97 | | |
| 45 | 542-85-8 | Ethyl isothiocyanate | C3H5NS | 87.14 | -6 °C | Reacts with water. Soluble in chlorinated and aromatic hydrocarbons. Miscible in ethanol and ether. |
| 46 | 542-88-1 | BIS(CHLOROMETHYL)ETHER | C2H4Cl2O | 114.96 | 171℃ | |
| 47 | 542-90-5 | Ethyl thiocyanate;Thiocyanic acid ethyl ester | C3H5NS | 87.14 | -85.5°C | |
| 48 | 542-91-6 | Diethylsilane | C4H12Si | 88.22 | -132°C | |
| 49 | 542-92-7 | cyclopentadiene | C5H6 | 66.1 | -85°; mp 32.5° | 10.3 mM at 25 °C (shake flask-UV spectrophotometry, Streitwieser and Nebenzahl, 1976) |