| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 1981-20-0 | | phosphoric acid, diethyl ester, ester with p-hydroxybenzenesulfonamide | | | | |
| 1981-38-0 | 2-苯基蒽 | 2-phenylanthracene | | | | |
| 1981-49-3 | | glycerate 1,3-biphosphate | | | | |
| 1981-58-4 | 磺胺二甲嘧啶钠盐 | n(sup 1)-(4,6-dimethyl-2-pyrimidinyl)-sulfanilamid monosodium salt | C12H13N4NaO2S | 300.31 | | |
| 1981-80-2 | | 2-Propen-1-yl | C3H5 | 41.07 | | |
| 19810-31-2 | 苄氧基乙酰氯 | benzyloxyacetyl chloride | | | | |
| 19810-58-3 | | 2-amino-6-propylpyrimidin-4-ol | | | | |
| 19810-74-3 | | 6-methyl-2-morpholino-4-pyrimidino | | | | |
| 19810-79-8 | 2-吗啉基-4-羟基嘧啶 | 2-morpholinopyrimidin-4-ol | | | | |
| 19811-05-3 | | 2,4-dichlorobenzophenone | C13H8Cl2O | 251.11 | | |
| 19811-10-0 | | 2',4'-dimethylchalcone | | | | |
| 19811-64-4 | | z-gly-gly-gly-onp | C20H20N4O8 | 444.40 | | |
| 19812-49-8 | 2-甲基氮杂环丁烷 | 2-methylazetidine | | | | |
| 19812-63-6 | | diethyl tetradecanedioate | C18H34O4 | 314.46 | 28-31℃ | |
| 19812-64-7 | | 1,14-tetradecanediol | C14H30O2 | 230.39 | 85-89℃ | |
| 19812-92-1 | | 1'-biphenyl]-4-ol, 4'-(1,1-dimethylethyl)-[ | | | | |
| 19812-93-2 | 4-氰基-4'-羟基联苯 | 4-Cyano-4'-hydroxybiphenyl | C13H9NO | 195.22 | | |
| 198124-01-5 | | 1-(2,4-difluorophenyl)-3-(4-phenoxyphenyl)-2-thiourea | | | | |
| 198126-03-3 | | 3-(2-fluorobenzoyl)-1h-pyrrole | | | | |
| 198126-85-1 | | 12,3,6a-ethanylylidene-9,11a-methanoazuleno(2,1-b)azocine-6,8,11-triol, tetrade | | | | |
| 198127-92-3 | | n,n-dimethyl 4,5-diiodo-1h-imidazole-1-sulfonamide | | | | |
| 19813-76-4 | | 4-(methylthio)biphenyl | | | | |
| 19813-90-2 | 联苯-4-硫醇 | biphenyl-4-thiol | | | | |
| 198134-42-8 | | 2,6-dimethoxy-4-(2-benzothiazolyl)phenol | | | | |
| 198134-75-7 | n-(2,5-二甲氧基苯)-4-氟苯甲酰胺 | n-(2,5-dimethoxyphenyl)-4-fluorobenzamide | | | | |
| 198134-86-0 | | p,p'-dimethoxylobelanine hydrochloride | | | | |
| 198134-94-0 | | (2e)-3-(2,3-dimethoxyphenyl)-1-(4-methylphenyl)prop-2-en-1-one | | | | |
| 198134-95-1 | | (2e)-3-(2,5-dimethoxyphenyl)-1-(4-methylphenyl)prop-2-en-1-one | | | | |
| 198135-05-6 | | 2,3-dimethoxy-n-(3-nitrophenyl)benzylamine | | | | |
| 198139-51-4 | | 5-fg 488, se | | | | |
| 198139-95-6 | 2-氟-n-(2,5-二甲氧基苯基)苯甲酰胺 | 2-fluoro-n-(2,5-dimethoxyphenyl)benzamide | | | | |
| 19814-71-2 | | 1,1'-oxybis[3-methyl-benzen | | | | |
| 19814-75-6 | | 9,9-dimethylxanthene | | | 35-38℃ | 114℃(0.6 |
| 198141-10-5 | | 3-[(2-chloropyridin-3-yl)amino]cyclohex-2-en-1-one | | | | |
| 198141-12-7 | 5,6,7,8-四氢-9h-吡啶并[3,2-b]吲哚-9-酮 | 5,6,7,8-tetrahydro-9h-pyrido[3,2-b]indol-9-one | | | | |
| 198142-65-3 | 2,7-二溴螺[芴-9,9'-氧杂蒽] | 2,7-bibromospiro[fluorene-9,9'-xanthene] | | | | |
| 198149-19-8 | 1,3,5,7,8-五甲基-2-formyl-4,4-二氟-4-bora-3a,4a-diaza-s-indacene | 1,3,5,7,8-pentamethyl-2-formyl-4,4-difluoro-4-bora-3a,4a-diaza-s-indacene | | | | |
| 19815-16-8 | 4-氯-6-硝基喹唑啉 | 4-chloro-6-nitroquinazoline | | | | |
| 19815-17-9 | 4-氯-7-硝基喹唑啉 | 4-chloro-7-nitroquinazoline | | | | |
| 19815-97-5 | 2-溴-1-(2,3-二氢-1,4-苯并氧)乙酮 | 2-bromo-1-(2,3-dihydrobenzo[b][1,4]dioxin-5-yl)ethanone | | | | |
| 19816-85-4 | 二苯乙酮对甲苯磺酰腙 | desoxybenzoin p-toluenesulfonylhydrazone | | | | |
| 19816-88-7 | | 1,3-diphenylacetone p-tosylhydrazone | C22H22N2O2S | 378.48 | 183-188℃ | |
| 19817-07-3 | | 3-ethynyl-1-azabicyclo[2.2.2]octan-3-ol | | | | |
| 19817-70-0 | | n-benzoyl-3-phenyl-, ethyl ester, dl-alanin | | | | |
| 19817-88-0 | | hexanoylglucosamine | | | | |
| 19817-91-5 | | uridine 5'-diphospate, trisodium salt hydrate | C9H11N2Na3O12P2.xH2O | | | |
| 19817-92-6 | | uridine 5'-triphosphate, trisodium salt, hydrate | C9H12N2Na3O15P3.xH2O | | 140℃ | |
| 19818-06-5 | ((2,6-二氯苯基)磺酰基)甘氨酸 | ((2,6-dichlorophenyl)sulfonyl)glycine | | | | |
| 19819-15-9 | | 3-d)pyrimidin-4(1h)-one, 5,6,7,8-tetrahydro-2-methyl-(1)benzothieno( | | | | |
| 19819-18-2 | | 3-d)pyrimidin-4(1h)-one, 5,6,7,8-tetrahydro-2-phenyl-(1)benzothieno( | | | | |
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