| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 425-61-6 | 2,2,3,3-四氟-1,4-丁烷二醇 | 2,2,3,3-tetrafluoro-1,4-butanediol | C4H6F4O2 | 162.08 | 85-87℃ | 10-112℃( |
| 425-75-2 | 三氟甲烷磺酸酸乙酯 | trifluoro-methanesulfonic aci ethyl ester | C3H5F3O3S | 178.13 | | |
| 425-87-6 | | ether, 2-chloro-1,1,2-trifluoroethyl methyl | C3H4ClF3O | 148.51 | | |
| 425-88-7 | | methyl 1,1,2,2-tetrafluoroethyl ether | C3H4F4O | 132.06 | | 33℃ |
| 425-99-0 | | 2,2-difluoromalonamide | C3H4F2N2O2 | 138.07 | 206-207℃ | |
| 4250-38-8 | | nonacosanoic acid | C29H58O2 | 438.77 | | |
| 4250-45-7 | | Borane,dichloro-p-tolyl- | C7H7BCl2 | 172.85 | | |
| 4250-46-8 | | Borane,dichloro(p-chlorophenyl)- | C6H4BCl3 | 193.27 | | |
| 4250-77-5 | 6-羟基黄烷酮 | 6-hydroxyflavanone | | | 220-222℃ | |
| 4250-81-1 | 1-苯基戊烯 | 1-phenyl-1-pentyne | C11H12 | 144.21 | | |
| 42504-43-8 | | pyridyl-indandion | | | | |
| 42504-46-1 | 十二烷基苯磺酸与1-氨基-2-丙醇(1:1)的化合物 | Benzenesulfonic acid, dodecyl-, compd. with 1-amino-2-propanol (1:1) | C18H30O3S·C3H9NO | | | |
| 42504-87-0 | | isobutylhydrazine | | | | |
| 42505-71-5 | | n,n-dimethyl-3-thieno(3,2-c)(2)benzothiepin-10(5h)-ylidene-1-propanamin hyd | | | | |
| 42505-74-8 | | 1-propanamine, n,n-dimethyl-3-thieno(2,3-c)(2)benzothiepin-4(9h)-ylidene, hydro | | | | |
| 42505-76-0 | | n,n-dimethyl-3-thieno(2,3-c)(2)benzothiepin-4(9h)-ylidene-1-propanamin hydr | | | | |
| 42505-78-2 | | n-methyl-3-thieno(2,3-c)(2)benzothiepin-4(9h)-ylidene-1-propanamin hydrochl | | | | |
| 42505-79-3 | | 1-(8-chloro-10,11-dihydrodibenzo(b,f)thiepin-10-yl)-4-methyl-piperazin meth | | | | |
| 42505-86-2 | | n,n-dimethyl-3-thieno(2,3-c)(2)benzothiepin-4(9h)-ylidene-1-propanamin 10-o | | | | |
| 42506-03-6 | | 9-chloro-9-phenylxanthene | | | 102-106℃ | |
| 42506-67-2 | | 2,6-diphenyl-4-pyridinecarboxylic anhydride | | | | |
| 42507-55-1 | | 4,5-dimethyl-2-(2-methyl-1-propenyl)-3-cyclohexene-1-carboxaldehyd (1 alpha | | | | |
| 42507-56-2 | | ,2 beta,5 alpha)- | | | | |
| 42507-57-3 | | ,2 alpha,5 beta)- | | | | |
| 42507-58-4 | | ,2 alpha,5 alpha)- | | | | |
| 42507-82-4 | | (4as,4br,8as)-2,2-dimethyl-1,2,3,4,4a,4b,8a,9- octahydro-1,3-methanophenanthrene-5,8-dione | C17H20O2 | 256.34 | | |
| 42508-16-7 | | carbamic acid, (4-propoxyphenyl)-, 2-(diethylamino)-1-methylethyl ester, monohy | | | | |
| 42508-17-8 | | carbamic acid, (4-butoxyphenyl)-, 2-(diethylamino)-1-methylethyl ester, monohyd | | | | |
| 42508-60-1 | | 1-acetonylpyridinium chloride | C8H10NO | 136.17 | | |
| 42508-74-7 | (4-甲基-吡啶-2-基)-甲醇 | (4-methylpyridin-2-yl)methanol | | | | |
| 42508-80-5 | 1-(4-甲基吡啶-2-基)丙酮 | 1-(4-methylpyridin-2-yl)acetone | | | | |
| 42509-62-6 | | 4-triazol-3-one, 5-chloro-1,2-dihydro-1-(1-methylethyl)-3h-2 | | | | |
| 42509-80-8 | 支撑,加固,永久工作台 | o-(5-chloro-1-(1-methylethyl)-1h-1,2,4-triazol-3-yl) o,o-phosphorothioic aci | | | | |
| 42509-83-1 | | isazophos-methyl | | | | |
| 4251-01-8 | N,N'-二(1-甲基乙基)-1,4-苯二胺 | 4-Benzenediamine, N,N'-bis(1-methylethyl)-1 | C12H20N2 | | | |
| 4251-08-5 | | 1-(3-chlorophenyl)-3-phenyl-2-thiourea | | | | |
| 4251-13-2 | | cyclohexyl thiocyanate | | | | |
| 4251-16-5 | | propyl thiocyanate | C4H7NS | 101.17 | | |
| 4251-21-2 | | p-phenylenedipropionic acid | C12H14O4 | 222.24 | 229-233℃ | |
| 4251-63-2 | (2-氯苯基)乙醛 | (2-chlorophenyl)acetaldehyde | | | | |
| 4251-65-4 | 对氯苯乙醛 | (4-chlorophenyl)acetaldehyde | | | | |
| 4251-89-2 | | 7-(3-(2-chloroethylethyl)aminopropylamino)-benz(c)acridin dihydrochloride | | | | |
| 42510-57-6 | | 3h-oxazolo(3,4-a)pyridine, hexahydro-3-methylimino-1-phenyl-, hydrochloride, (e | | | | |
| 42510-58-7 | | 3h-oxazolo(3,4-a)pyridine, hexahydro-3-methylimino-1-phenyl-, hydrochloride, (z | | | | |
| 42510-63-4 | | 3h-pyrido(1,2-c)oxazine, hexahydro-1-imino-4-phenyl-, hydrochloride, (e)-1 | | | | |
| 42510-71-4 | | oxazolidine, 3,4-dimethyl-2-imino-5-phenyl- (z)-(+-) | | | | |
| 42512-41-4 | | toluene-4-sulfonic acid 1-acetyl-piperidin-3-yl ester | | | | |
| 42513-36-0 | | 12-chloro-5-dodecyn | | | | |
| 42513-39-3 | | (z)-5-dodecen | | | | |
| 42514-09-0 | | 3-[(2-chloroethyl)sulfonyl]-n-[({3-[(2-chloroethyl)sulfonyl]propanoyl}amino)methyl]propanamide | | | | |
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