| 中文名称 | 英文名称 | CAS号 | 化学式 |
|---|---|---|---|
| 4`,5`-双[N,N-二(羧甲基)氨甲基]荧光素 | calcein | 207124-64-9 | C30H26N2O13 |
| 4R)(2S,4R)(2S,4R)(2S,4R)(2S,4R)-5-氨基-2-铵基-4-氟-5-氧代戊酸酯 | (2S,4R)-4-fluoroglutamine | 238418-71-8 | C5H9FN2O3 |
| 4H-茚并[5,6-c][1,2]恶唑 | 4H-Indeno[5,6-C][1,2]oxazole | 28648-21-7 | C10H7NO |
| 4H-苯并[f]喹啉-3-酮 | benzo<f>quinolin-1(2H)-one | 23981-08-0 | C13H9NO |
| 4H-环戊并[2,1-B:3,4-B']二噻吩-4-酮 | 4H-cyclopenta[2,1-b:3,4-b']dithiophen-4-one | 25796-77-4 | C9H4OS2 |
| 4H-环戊二烯并[d]嘧啶 | 4H-Cyclopenta[d]pyrimidine | 270-96-2 | C7H6N2 |
| 4H-环戊二烯并[b]喹喔啉 | 4H-Cyclopenta[b]quinoxaline | 269-66-9 | C11H8N2 |
| 4H-环五菲 | 4H-Cyclopenta[def]phenanthrene | 203-64-5 | C15H10 |
| 4H-噻吩并[3,2-c]苯并吡喃-2-羧酸 | 4H-thieno[3,2-c]-chromene-2-carboxylic acid | 26268-04-2 | C12H8O3S |
| 4H-嘧啶并[5,4-d][1,3]恶嗪 | 4H-Pyrimido[5,4-d][1,3]oxazine | 28647-47-4 | C6H5N3O |
| 4H-咪唑并[4,5-d]哒嗪-4-酮,3,5-二氢-5-[(苯基甲氧基)甲基]- | Potassium nonylphenolate | 27936-43-2 | C15H23KO |
| 4H-咪唑并[4,5,1-Ij]喹啉 | 4h-Imidazo[4,5,1-ij]quinoline | 209-28-9 | C10H8N2 |
| 4H-咪唑并[1,5,4-去]喹喔啉 | 4h-Imidazo[1,5,4-de]quinoxaline | 209-29-0 | C9H7N3 |
| 4H-咪唑并[1,5,4-Ef][1,5]苯并硫氮杂卓 | 6H-Imidazo[1,5,4-ef][1,5]benzothiazepine | 254757-43-2 | C10H8N2S |
| 4H-咪唑 | 1H-2,2,4-triazole | 288-30-2 | C3H4N2 |
| 4H-呋喃并[3,2-b]吡咯 | furo<3,2-b>pyrrole | 250-91-9 | C6H5NO |
| 4H-吡喃并[4,3-c]异噻唑,6,7-二氢-6,6-二甲基-3-苯基- | 1-(Ethylthio)-2-fluorobenzene | 252555-43-4 | C8H9FS |
| 4H-吡喃并[2,3-b]吡啶-4-酮 | 4H-Pyrano[2,3-b]pyridin-4-one | 22052-71-7 | C8H5NO2 |
| 4H-吡喃-2,6-二甲酸 | 4<i>H</i>-Pyran-2,6-dicarbonsaeure | 23047-07-6 | C7H6O5 |
| 4H-吡喃 | 4H-pyran | 289-65-6 | C5H6O |
| 4H-吡啶并[1,2-a]嘧啶-4-酮 | pyrido[1,2-a]pyrimidin-4-one | 23443-10-9 | C8H6N2O |
| 4H-吡唑并[3,4-d]嘧啶 | 4H-Pyrazolo[3,4-d]pyrimidine | 271-76-1 | C5H4N4 |
| 4H-吡唑并[1,5-a]苯并咪唑-6-胺 | 6-amino-pyrazolo[1,5-a]benzimidazole | 217318-25-7 | C9H8N4 |
| 4H-吡唑并[1,5-a]苯并咪唑-2,3-二胺 | 1H-pyrazolo[1,5-a]benzimidazole-2,3-diamine | 227611-69-0 | C9H9N5 |
| 4H-吡唑并[1,5-a]嘧啶-7-酮 | 4H-Pyrazolo[1,5-a]pyrimidin-7-one | 29274-23-5 | C6H5N3O |
| 4H-吡咯并[2.3-d][1,3]噻唑-5-羧酸乙酯 | ethyl 4H-pyrrolo[2,3-d]thiazole-5-carboxylate | 238749-53-6 | C8H8N2O2S |
| 4H-吡咯并[2,3-d]噻唑 | 4H-pyrrolo[2,3-d]thiazole | 298699-45-3 | C5H4N2S |
| 4H-吡咯并[2,3-D]嘧啶 | 4H-Pyrrolo[2,3-d]pyrimidine | 271-68-1 | C6H5N3 |
| 4H-吡咯并[1,2-a]苯并咪唑 | 4H-Pyrrolo<1,2-a>benzimidazol | 24990-52-1 | C10H8N2 |
| 4H-吡咯并[1,2-a]噻吩并[3,2-D]咪唑 | 4h-Pyrrolo[1,2-a]thieno[3,2-d]imidazole | 260053-86-9 | C8H6N2S |
| 4H-吡咯并[1,2-a]吲哚 | 9H-pyrrolo<1,2-a>indole | 247-66-5 | C11H9N |
| 4H-[1,3]恶唑并[5,4,3-Ij]喹啉-2,6(5H)-二酮 | 4,5-Dihydro-2H,6H-[1,3]oxazolo[5,4,3-ij]quinoline-2,6-dione | 28884-03-9 | C10H7NO3 |
| 4H-[1,3]噻嗪并[3,2-a]苯并咪唑 | 4H-benzimidazo[2,1-b][1,3]thiazine | 245-57-8 | C10H8N2S |
| 4H-[1,3]二恶英并[4,5-c]吡啶 | 2H,4H-[1,3]Dioxino[4,5-c]pyridine | 254-30-8 | C7H7NO2 |
| 4H-8-溴-1,2,4-噁二唑(3,4-d)苯并(b)(1,4)噁嗪-1-酮 | 4H-8-bromo-1,2,4-oxadiazolo(3,4-d)benz(b)(1,4)oxazin-1-one | 204326-43-2 | C9H5BrN2O3 |
| 4H-1-苯并噻喃-4-酮 1,1-二氧化物 | 1-thiochromone 1,1-dioxide | 22810-27-1 | C9H6O3S |
| 4H-1-苯并吡喃-3-甲醛,2-氨基-6,8-二氯-4-羰基- | Tetrasodium 4,4'-bis(4-(p-sulphonatophenyl)-2H-1,2,3-triazol-2-yl)stilbene-2,2'-disulphonate | 24239-35-8 | C30H18N6Na4O12S4 |
| 4H-1,4-恶嗪 | 4H-1,4-oxazine | 290-47-1 | C4H5NO |
| 4H-1,3-苯并二氧杂环己烷-7-羧酸 | 4h-1,3-Benzodioxine-7-carboxylic acid | 259795-37-4 | C9H8O4 |
| 4H-1,3-苯并二氧杂环己烷 | 4H-1,3,2-benzodioxin | 254-27-3 | C8H8O2 |
| 4H-1,3-二噁唑并[4,5-c]吡咯,4-[[[(1,1-二甲基乙基)二甲基甲硅烷基]氧代]甲基]-6-(1,3-二硫烷-2-基)四氢-2,2-二甲基-,(3aR,4R,6R,6aS)- | 9-fluoro-1,2,3,4-tetrahydro-pyrazino[1,2-a]indole | 256930-21-9 | C11H11FN2 |
| 4H-1,2,4-噻唑-4-丙醇 | 3-(4H-1,2,4-triazol-4-yl)propan-1-ol | 27106-94-1 | C5H9N3O |
| 4H-1,2,4-三唑-4-胺 | 4-amino-1,2,4-triazol-1-ium chloride | 25545-88-4 | C2H4N4*ClH |
| 4H-1,2,4-三唑-3,4-二胺氢溴酸盐 | 3,4-diamino-1,2,4-triazole hydrobromide | 23160-99-8 | BrH*C2H5N5 |
| 42-(2-四唑基)雷帕霉素 | 42-(2-tetrazolyl)-rapamycin | 221877-56-1 | C52H79N5O12 |
| 4.5-二氯荧光黄4.5-二氯-3.6-荧烷二醇 | 4',5'-Dichlorofluorescein | 2320-96-9 | C20H10Cl2O5 |
| 4.4-二甲基-5-羟基戊腈 | 4,4-dimethyl-5-hydroxyvaleronitrile | 25252-68-0 | C7H13NO |
| 4.4'-[1.4-亚苯基双(乙炔-2.1-二基)]二苯甲酸 | 1,4-bis(2-[4-carboxyphenyl]ethynyl)benzene | 217077-89-9 | C24H14O4 |
| 4-(6-羟基己-1-炔-1-基)苯甲酸甲酯 | methyl 4-(6-hydroxyhex-1-yn-1-yl)benzoate | 222983-64-4 | C14H16O3 |
| 4-(2-酮酸-1-苯并咪唑)哌啶 | 4-(2-keto-1-benzimidazolinyl)piperidine | 20662-53-7 | C12H15N3O |