| 1 | 4250-02-6 | 2-Propanone, 1-diazo-3-phenyl- | C9H8N2O | 160.17262 | | |
| 2 | 4250-08-2 | Phosphine oxide, dioxybis[diphenyl- (9CI) | C24H20O4P2 | 434.36 | | |
| 3 | 4250-38-8 | NONACOSANOIC ACID | C29H58O2 | 438.77 | 69°C | |
| 4 | 4250-45-7 | Borane, dichloro(4-methylphenyl)- | C7H7BCl2 | 172.85 | | |
| 5 | 4250-46-8 | Borane, dichloro(4-chlorophenyl)- | C6H4BCl3 | 193.27 | | |
| 6 | 4250-47-9 | Borane, dichloro(3-methylphenyl)- | C7H7BCl2 | 172.85 | | |
| 7 | 4250-48-0 | Borane, dichloro(2-methylphenyl)- | C7H7BCl2 | 172.84748 | | |
| 8 | 4250-49-1 | Borane,(4-bromophenyl)dichloro- | C6H4BBrCl2 | 237.71696 | | |
| 9 | 4250-53-7 | Borane, dichloro-1-naphthalenyl- | C10H7BCl2 | 208.88 | | |
| 10 | 4250-77-5 | 6-Hydroxyflavanone | C15H12O3 | 240.25 | 220-222 °C (dec.) (lit.) | |
| 11 | 4250-81-1 | 1-Phenyl-1-pentyne | C11H12 | 144.21 | | Not miscible or difficult to mix in water. |
| 12 | 4250-82-2 | (3,3-DIMETHYL-BUT-1-YNYL)-BENZENE | C12H14 | 158.24 | | |
| 13 | 4250-90-2 | 7,8-dimethyl-10-formylmethylisoalloxazine | C14H12N4O3 | 284.27 | | |
| 14 | 4250-92-4 | 1,4-Benzenediol, 2,2'-(1,5-pentanediyl)bis- | C17H20O4 | 288.34 | | |
| 15 | 42501-29-1 | (3-CHLORO-ADAMANTAN-1-YL)-ACETIC ACID | C12H17ClO2 | 228.72 | 182-183.5 °C | |
| 16 | 42501-53-1 | Tricyclo[3.3.1.13,7]decan-1-ol,3-amino-, hydrobromide (1:1) | C10H17NO.HBr | | | |
| 17 | 42501-87-1 | Benzenamine, N-[(2-fluorophenyl)methylene]-4-methoxy- | C14H12FNO | 229.25 | | |
| 18 | 42502-47-6 | 1-Penten-3-yne, 5-(2-propyn-1-yloxy)- | C8H8O | 120.15 | | |
| 19 | 42502-56-7 | 3,3-dimethyl-1H-isobenzofuran | C10H12O | 148.2 | | |
| 20 | 42504-43-8 | 2-pyridin-2-ylindene-1,3-dione | C14H9NO2 | | | |
| 21 | 42504-46-1 | dodecylbenzenesulphonic acid, compound with 1-aminopropan-2-ol (1:1) | C18H30O3S.C3H9NO | 401.61 | | |
| 22 | 42504-54-1 | Benzyl-ethylbenzene | | | | |
| 23 | 42504-87-0 | azaniumyl-(2-methylpropyl)azanium | C4H12N2 | 88.15 | | |
| 24 | 42505-76-0 | 1-Propanamine, N,N-dimethyl-3-thieno[2,3-c][2]benzothiepin-4(9H)-ylidene-, hydrochloride, (Z)- (9CI) | C17H20ClNS2 | 337.92 | | |
| 25 | 42505-79-3 | 1-(8-chloro-10,11-dihydrodibenzo[b,f]thiepin-10-yl)-4-methylpiperazinium methanesulphonate | C20H25ClN2O3S2 | 441.0071 | | |
| 26 | 42505-86-2 | 1-Propanamine, N,N-dimethyl-3-(10-oxidothieno[2,3-c][2]benzothiepin-4(9H)-ylidene)-, hydrochloride, (Z)- (9CI) | C17H20ClNOS2 | 353.92 | | |
| 27 | 42506-03-6 | 9-CHLORO-9-PHENYLXANTHENE | C19H13ClO | 292.76 | 102-106 °C (lit.) | |
| 28 | 42506-05-8 | Methanone, (2-phenoxyphenyl)phenyl- | C19H14O2 | 274.31 | | |
| 29 | 42506-58-1 | 4H-Pyran, 4-(2,6-dimethyl-4H-pyran-4-ylidene)-2,6-dimethyl- | C14H16O2 | 216.28 | | |
| 30 | 42506-60-5 | 2,2',6,6'-TETRAPHENYL-4,4'-BITHIOPYRANYLIDENE | C34H24S2 | 496.68 | | |
| 31 | 42506-61-6 | 4H-Thiine, 2,6-dimethyl-4-(2,6-dimethyl-4H-thiin-4-ylideno)- | C14H16S2 | 248.41 | | |
| 32 | 42507-33-5 | 2-Cyclopenten-1-one,2,3-dimethyl-5-(1-methylethylidene)-(9CI) | C10H14O | 150.22 | | |
| 33 | 42507-55-1 | (1alpha,2beta,5beta)-4,5-dimethyl-2-(2-methylpropen-1-yl)cyclohex-3-ene-1-carbaldehyde | C13H20O | 192.3 | | |
| 34 | 42507-56-2 | (1alpha,2beta,5alpha)-4,5-dimethyl-2-(2-methylpropen-2-yl)cyclohex-3-ene-1-carbaldehyde | C13H20O | 192.2973 | | |
| 35 | 42507-57-3 | (1alpha,2alpha,5beta)-4,5-dimethyl-2-(2-methylpropen-1-yl)cyclohex-3-ene-1-carbaldehyde | C13H20O | 192.3 | | |
| 36 | 42507-58-4 | (1alpha,2alpha,5alpha)-4,5-dimethyl-2-(2-methylpropen-1-yl)cyclohex-3-ene-1-carbaldehyde | C13H20O | 192.3 | | |
| 37 | 42508-17-8 | Carbamic acid, (4-butoxyphenyl)-, 2-(diethylamino)-1-methylethyl ester, monohydrochloride (9CI) | C18H31ClN2O3 | 358.91 | | |
| 38 | 42508-60-1 | N-Acetonylpyridinium chloride | C8H10ClNO | 171.62 | 207 °C | Soluble in water. |
| 39 | 42508-74-7 | (4-Methylpyridin-2-yl)methanol | C7H9NO | 123.15 | 96℃ | |
| 40 | 42508-80-5 | 1-(4-METHYLPYRIDIN-2-YL)ACETONE | C9H11NO | 149.19 | | |
| 41 | 42509-22-8 | 6-Phenanthridinecarboxylic acid ethyl ester | C16H13NO2 | 251.28 | | |
| 42 | 42509-62-6 | 5-chloro-1,2-dihydro-1-isopropyl-3H-1,2,4-triazol-3-one | C5H8ClN3O | 161.59 | | |
| 43 | 42509-80-8 | Isazophos | C9H17ClN3O3PS | 313.74 | <25℃ | 168 mg l-1 (20 °C) |
| 44 | 42509-83-1 | ISAZOPHOS-METHYL | C7H13ClN3O3PS | 285.69 | | |