| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 20449-61-0 | | DibromodicarbonyIbis[bis(diphenylarsino)methane]moIybdenum(II) | C52H44As4Br2MoO2 | 1256.34 | | |
| 20449-79-0 | | melittin (honeybee) | C131H229N39O31 | 2846.50 | | |
| 2044902-62-5 | 4-溴-5-氟吲哚啉-2,3-二酮 | 4-bromo-5-fluoroindoline-2,3-dione | | | | |
| 2044927-06-0 | | 2-methyl-4-(morpholin-4-yl)butan-2-amine dihydrochloride | | | | |
| 2045-00-3 | | 2-aminophenylarsonic acid | C6H8AsNO3 | 217.05 | | |
| 2045-11-6 | | 4'-bis(2-iodoethyl)amino-acetanilid | | | | |
| 2045-12-7 | | n(sup 4)-(2-iodoethyl)-n(sup 4)-(2-iodopropyl)-sulfanilamid | | | | |
| 2045-13-8 | | p-(bis(2-iodoethyl)amino)-benzoic aci | | | | |
| 2045-16-1 | | thio-acetic aci s-ester with 4-(bis(2-bromoethyl)amino)benzene thiol | | | | |
| 2045-17-2 | | 4'-(bis(2-bromoethyl)amino)-acetanilid | | | | |
| 2045-18-3 | | p-(bis(2-bromoethyl)amino)-benzoic aci | | | | |
| 2045-19-4 | | n,n-bis(2-bromoethyl)-anilin | | | | |
| 2045-20-7 | | n(sup 4)-(2-chloroethyl)-n(sup 4)-(2-chloropropyl)-sulfanilamid | | | | |
| 2045-21-8 | | p-(n-(2-chloroethyl)-n-ethylamino)-benzoic aci | | | | |
| 2045-23-0 | | p-(2-chloroethyl)amino-benzoic aci | | | | |
| 2045-25-2 | | 2-amino-4-morpholino-s-triazin | | | | |
| 2045-41-2 | | n(sup 4),n(sup 4)-bis(2-chloroethyl)-sulfanilamid | | | | |
| 2045-42-3 | | 4-(bis(2-chloroethyl)amino)-benzamid | | | | |
| 2045-44-5 | | p-(bis(2-chloroethyl)amino)-carbanilic aci isopropyl ester | | | | |
| 2045-52-5 | | n-benzyl-n',n'-dimethyl-n-phenyl-ethylenediamin hydrochloride | | | | |
| 2045-53-6 | | thiomethoxyflurane | | | | |
| 2045-64-9 | | n,n-dimethyl-n'-(2,4-dinitrophenyl)-1,4-phenylenediamine | | | | |
| 2045-70-7 | 2-氨基-3,5二硝基噻吩 | 3,5-dinitro-2-thiophenamin | C4H3N3O4S | 189.14 | 174-176℃ | |
| 2045-79-6 | 2-甲氧基苯乙胺 | 2-methoxyphenethylamine | C9H13NO | 151.21 | | 236-237℃ |
| 20450-35-5 | | (2,3,4,5-tetrachlorophenyl)trimethylsilane | | | | |
| 20450-60-6 | | 2,3-dihydro-n-isopropyl-2-benzofuranmethylamin maleate (1:1) | | | | |
| 204503-25-3 | | 1-bromo-4-((3-methylbut-2-en-1-yl)oxy)benzene | | | | |
| 204509-08-0 | (3S,5S)-5-(羟甲基)四氢呋喃-3-醇 | (3S,5S)-5-(hydroxymethyl)tetrahydrofuran-3-ol | | | | |
| 20451-28-9 | | 2-phenyl-3-piperidino-propiophenon | | | | |
| 20451-50-7 | | 4-tert-butylcyclohexanecarbonyl chloride | | | | |
| 20451-53-0 | | phenyl vinyl sulfoxide | | | | 93℃(0.2 |
| 204512-94-7 | 3-氨基四氢呋喃盐酸盐 | tetrahydrofuran-3-ylamine hydrochloride | | | | |
| 204512-95-8 | (S)-(+)-3-氨基四氢呋喃 盐酸盐 | (S)-(+)-3-aminotetrahydrofuran hydrochloride | | | | |
| 204513-31-5 | 4-溴-2-羟甲基噻唑 | 4-bromo-2-(hydroxymethyl)thiazole | | | | |
| 204513-62-2 | | 4-bromo-2-(thiomethyl)thiazole | | | | |
| 204514-14-7 | 2,2-二甲基-3-(boc-氨基)丙酸乙酯 | ethyl 3-(boc-amino)-2,2-dimethylpropionate | | | | |
| 204514-22-7 | boc-1 - 氨基甲基环戊烷羧酸 | boc-1-aminomethyl-cyclopentane carboxylic acid | | | | |
| 204514-23-8 | boc-1-氨基甲基-环己烷羧酸 | boc-1-aminomethyl-cyclohexane carboxylic acid | | | | |
| 204516-31-4 | 2-(三氟甲基)-4h-吡喃-4-酮 | 2-(trifluoromethyl)-4h-pyran-4-one | | | | |
| 2045189-35-1 | 3-氟氮杂环丁烷-1-乙胺 | 3-fluoroazetidine-1-ethanamine | | | | |
| 2045189-46-4 | 2-(3,3-二氟吡咯烷-1-基)乙-1-胺 | 2-(3,3-difluoroazetidin-1-yl)ethan-1-amine | | | | |
| 20452-51-1 | | [(2,5-dimethoxyphenyl)methyl]-propanedioic aci diethyl ester | | | | |
| 204521-63-1 | n-棕榈酰-l-谷氨酸1-叔丁基5-(n-琥珀酰亚胺)酯 | 1-tert-butyl 5-(n-succinimidyl) n-palmitoyl-l-glutamate | | | | |
| 204522-78-1 | | zirconium(iv) diisopropoxidebis(2,2,6,6-tetramethyl-3,5- heptanedionate) | | | 98-107℃ | |
| 204523-09-1 | | l-cysteine-15n | | | | |
| 204523-15-9 | | boc-asp-oh-15n | | | | |
| 204523-23-9 | | l-cysteine-n-t-boc, s-p-mebz (15n, 98%) | | | | |
| 204526-12-5 | | n-boc-n-(2-cyanoethy)glycine | | | | |
| 20453-12-7 | | Rubidium vanadyl chloride | Cl4ORb2V | 379.69 | | |
| 20453-68-3 | | 1,2,3,4,5-pentamethyl-6-(trifluorovinyl)borazine | C7H15B3F3N3 | 230.64 | | |
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