| 中文名称 | 英文名称 | CAS号 | 化学式 |
|---|---|---|---|
| 5,5,5-三氟戊酸 | 5,5,5-trifluoropentanoic acid | 407-62-5 | C5H7F3O2 |
| 5,5,10,10-四溴三环[7.1.0.04,6]癸烷 | 5,5,10,10-tetrabromotricyclo[7.1.0.0<sup>4,6</sup>]decane | 4277-22-9 | C10H12Br4 |
| 5,5'-联-1,3-苯并二氧戊环 | 3,3',4,4'-bis(methylenedioxy)biphenyl | 4791-89-3 | C14H10O4 |
| 5,5'-羰基二间苯二甲酸 | 5,5'-carbonyldiisophthalic acid | 43080-50-8 | C17H10O9 |
| 5,5'-双((5-全氟己基)噻吩-2-基)-2,2'-联噻吩 | 5,5'''-bisperfluorohexyl-2,2':5',2'':5'',2'''-quaterthiophene | 446043-85-2 | C28H8F26S4 |
| 5,5'-二溴-2,2'-联噻吩 | 5,5'-Dibromo-2,2'-bithiophene | 4805-22-5 | C8H4Br2S2 |
| 5,5'-二溴-2,2'-联嘧啶 | 5,5’-dibromo-2,2’-bipyrimidine | 400859-09-8 | C8H4Br2N4 |
| 5,5'-(丙烷-1,3-二基)二咪唑烷-2,4-二酮 | 5,5'-trimethylenedihydantoin | 41980-32-9 | C9H12N4O4 |
| 5,24(28)-胆甾二烯-24-亚甲基-3beta-醇 | 24-methylene cholesterol | 474-63-5 | C28H46O |
| 5,11-二氢-5-甲基-10H-二苯并[b,f]氮杂卓-10-酮 | 5-methyl-5,11-dihydro-10H-dibenzo[b,f]azepin-10-one | 4904-83-0 | C15H13NO |
| 5,10-二氢-吩嗪-1-羧酸酰胺 | 5,10-dihydro-phenazine-1-carboxylic acid amide | 46801-26-7 | C13H11N3O |
| 5,10-二氢-5-甲基-1,3-二硝基-吩嗪 | 5-methyl-1,3-dinitro-5,10-dihydro-phenazine | 4177-31-5 | C13H10N4O4 |
| 5,10-二氢-10-羟基吩磷嗪 10-氧化物 | 10-oxo-5,10-dihydro-10λ5-phenophosphazin-10-ol | 472-43-5 | C12H10NO2P |
| 5,10,15,20-四(3-吡啶基)-21H,23H-卟吩 | Tetra(3-pyridyl)porphyrin | 40882-83-5 | C40H26N8 |
| 5,10,15,20-四(1-甲基-4-吡啶基)卟啉铜 | copper(II) 5,10,15,20-tetrakis(1-methyl-4-pyridyl)-21H,23H-porphine | 48242-70-2 | C44H36CuN8 |
| 5(6)-氯苯并咪唑-2-磺酸 | 5-chloro-1H-benzimidazole-2-sulfonic acid | 40828-56-6 | C7H5ClN2O3S |
| 5'-脱氧吡哆辛 | 5'-Deoxypyridoxin | 4811-03-4 | C8H11NO2 |
| 5'-氰基烟碱 | 5'-cyanonicotine | 42459-12-1 | C11H13N3 |
| 5'-氨基-5'-脱氧鸟苷 | 2-amino-9-[5-(aminomethyl)-3,4-dihydroxy-oxolan-2-yl]-3H-purin-6-one | 4099-84-7 | C10H14N6O4 |
| 5'-氨基-2,3'-联噻吩-4'-羧酸甲酯 | methyl 5'-amino-2,3'-bithiophene-4'-carboxylate | 444907-56-6 | C10H9NO2S2 |
| 5'-二磷酰腺苷 2'-磷酸酯 | <i>O</i><sup>5'</sup>-trihydroxydiphosphoryl-<i>O</i><sup>2'</sup>-phosphono-adenosine | 4457-01-6 | C10H16N5O13P3 |
| 5'-O-三苯甲基-3'-O-甲磺酰基胸苷 | 5'-O-Trityl-3'-O-mesylthymidine | 42214-24-4 | C30H30N2O7S |
| 5''-溴-3'-癸基-2,2':5',2''-三联噻吩 | 5-bromo-4'-decyl[2,2';5',2'']terthiophene | 477335-05-0 | C22H27BrS3 |
| 4-氨基乙酰苯胺盐酸盐 | N-(4-aminophenyl)acetamide hydrochloride | 43036-07-3 | C8H10N2O*ClH |
| 4,4’,5-三甲基四硫富瓦烯 | 4,4’,5-trimethyltetrathiafulvalene | 49868-52-2 | C9H10S4 |
| 4、.4'-二羧基联苯-.2、.2'-二羧基联苯 | 2,2'-dihydroxy-1,1'-biphenyl-4,4'-dicarboxylic acid | 41738-72-1 | C14H10O6 |
| 4’-甲酰基-2’-甲氧基联苯-4-甲酸甲酯 | 4'-formyl-2'-methoxybiphenyl-4-carboxylic acid methyl ester | 406233-36-1 | C16H14O4 |
| 4’-甲氧基氟比洛芬 | 2-(2-fluoro-4'-methoxy-4-biphenylyl)propionic acid | 41635-83-0 | C16H15FO3 |
| 4’-甲基[1,1’-联苯]-4-甲酸甲酯 | methyl 4-(4-tolyl)benzoate | 49742-56-5 | C15H14O2 |
| 4’-溴苯丁酮 | 1-(4-bromophenyl)-1-butanone | 4981-64-0 | C10H11BrO |
| 4’-溴-联苯-3-胺 | 3-Amino-4'-brombiphenyl | 40641-71-2 | C12H10BrN |
| 4’-氯联苯-3-羧酸 | 4’-chloro-[1,1’-biphenyl]-3-carboxylic acid | 4655-10-1 | C13H9ClO2 |
| 4’-氨基乙酰苯盐酸盐 | 4'-aminoacetophenone hydrochloride | 41784-08-1 | C8H9NO*ClH |
| 4’-氟-2-羟基苯乙酮 | 4-fluoro-2-hydroxy-acetophenone | 403-31-6 | C8H7FO2 |
| 4’-己氧基-[1,1’-联苯基]-4-甲腈 | 4'-(hexyloxy)-4-biphenylcarbonitrile | 41424-11-7 | C19H21NO |
| 4’-去甲鬼臼毒素 | 4-demethylpodophyllotoxin | 40505-27-9 | C21H20O8 |
| 4’-二乙基氨基苯乙炔 | 4-ethynyl-N,N-diethylaniline | 41876-70-4 | C12H15N |
| 4’-O-叔-丁基二甲基硅烷基染料木碱 | 3-[4-(tert-butyldimethylsilyloxy)phenyl]-5,7-dihydroxy-4H-chromen-4-one | 470666-97-8 | C21H24O5Si |
| 4‘-苄氧基苯丙酮 | 4-benzyloxypropiophenone | 4495-66-3 | C16H16O2 |
| 4beta-[3-(2-氯乙基)-3-亚硝基脲基]-1alpha-环己烷羧酸 | cis-Cccnu | 42558-94-1 | C10H16ClN3O4 |
| 4b,10alpha-二氢苯并[b]苯并[3,4]环丁[1,2-e][1,4]二恶英 | 4b,10a-Dihydro-5,10-dioxa-benzo[b]biphenylene | 42896-18-4 | C14H10O2 |
| 4a,6,7,7alpha-四氢-2,3-二甲基-5H-环戊并吡嗪 | 2,3-dimethyl-5,6,7,7a-tetrahydro-4a<i>H</i>-cyclopentapyrazine | 41330-26-1 | C9H14N2 |
| 4H-苯并吡喃并[6,5-d][1,3]噻唑 | 4H-pyrano[2,3-g][1,3]benzothiazole | 42316-00-7 | C10H7NOS |
| 4H-噻吩[3,2-b]吡咯-5-羧酸乙酯 | ethyl 4H-thieno[3,2-b]pyrrole-5-carboxylate | 46193-76-4 | C9H9NO2S |
| 4H-[1,3]噻唑并[5,4-f][1,4]苯并噻嗪 | 4H-[1,3]thiazolo[5,4-f][1,4]benzothiazine | 42395-63-1 | C9H6N2S2 |
| 4H-[1,3]噻唑并[4,5-g][1,4]苯并噻嗪 | 4H-[1,3]thiazolo[4,5-g][1,4]benzothiazine | 42395-62-0 | C9H6N2S2 |
| 4H-[1,3,4]恶二嗪o[4,5-a]苯并咪唑 | 4h-[1,3,4]Oxadiazino[4,5-a]benzimidazole | 41028-73-3 | C9H7N3O |
| 4H-1-苯并吡喃-4-酮,6-氨基-2-(4-氨基苯基)-5-羟基-(9CI) | 4,5-Dihydrotestolactone | 4269-77-6 | C19H26O3 |
| 4H-1-苯并吡喃-2-羧酸,6,7-二氯-4-羰基- | germidine | 465-77-0 | C34H53NO10 |
| 4H-1-苯并吡唑-4-酮 | 7-methoxy-chroman-4-one | 42327-52-6 | C10H10O3 |