| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 490-83-5 | | dehydroascorbicacid | | | | |
| 490-89-1 | | noradrenochrome | | | | |
| 490-91-5 | | 4-dione, 2-methyl-5-(1-methylethyl)-5-cyclohexadiene-1 | C10H12O2 | 164.20 | 44-47℃ | 230-232℃ |
| 490-97-1 | | 2-fluoro-benzoic aci sodium salt | | | | |
| 490-98-2 | | p-(butylamino)-salicylic aci 2-(dimethylamino)ethyl ester | | | | |
| 490-99-3 | | 5-methyl-2-(1-methylethyl)-, (1 alpha,2 beta,5 beta)-cyclohexano | | | | |
| 4900-26-9 | | 5-(2-amino-ethyl)-2-hydroxy-benzoic acid hydrobromide | | | | |
| 4900-30-5 | | 1,8-nonadiene | C9H16 | 124.22 | | 132℃ |
| 4900-33-8 | | 5-{[(1H-1,2,3,4-tetraazol-5-ylmethyl)thio]methyl}-1H-1,2,3,4-tetraazole | C4H6N8S | | | |
| 4900-38-3 | 2-乙酰氨基-2-((2-氧代-1,2-二氢喹啉-4-基)甲基)丙二酸二乙酯 | diethyl 2-acetamido-2-((2-oxo-1,2-dihydroquinolin-4-yl)methyl)malonate | | | | |
| 4900-63-4 | | 1-methoxy-4-nitronaphthalene | C11H9NO3 | 203.19 | 83-85℃ | |
| 4900-81-6 | | 4-cyclohexanediamine, n,n'-bis(cyclohexylethyl)- diacetate | | | | |
| 490021-97-1 | | 3-(4-chlorophenoxy)azetidine hcl | | | | |
| 490023-37-5 | (s)-(+)-苄基(3,5-二氧杂-4-磷杂-环庚[2,1-a;3,4-a′]二萘-4-基)甲胺 | | | | | |
| 490027-02-6 | | (4-bromo-phenyl)-pyrrolidin-1-yl-acetic acid | | | | |
| 490030-46-1 | 1-(4-(三氟甲氧基)苯基)哌嗪盐酸盐 | 1-(4-(trifluoromethoxy)phenyl)piperazine hydrochloride | | | | |
| 490034-62-3 | | (S)-3-amino-3-(o-tolyl)propanoic acid hydrochloride | | | | |
| 490034-80-5 | | (S)-3-amino-3-(3-fluorophenyl)propanoic acid hcl | | | | |
| 490038-59-0 | | 2-chloro-5-(2,6-difluorobenzoyl)pyridine | | | | |
| 490039-72-0 | 3-氰-4-碘吡啶 | 3-cyano-4-iodopyridine | | | | |
| 490039-73-1 | | 2-iodonicotinonitrile | | | | |
| 490039-83-3 | | 2-iodo-4-methoxybenzonitrile | | | | |
| 4901-03-5 | | narceine hydrochloride | C23H27NO8 | 445.46 | | |
| 4901-51-3 | | 2,3,4,5-tetrachloro-pheno | C6H2Cl4O | 231.89 | | |
| 4901-75-1 | | 3-ethyl-3-methyl-diaziridin | | | | |
| 4903-09-7 | 3-氯-4-甲氧基苯甲醛 | 3-Chloro-4-methoxybenzaldehyde | CH3OC6H3ClCHO | 170.59 | 56-60 ℃(lit.) | |
| 4903-36-0 | n-苯基亚胺苄基氯 | n-phenylbenzimidoyl chloride | | | | |
| 4903-95-1 | | 2-pyridin-2-yl-cyclopropanecarboxylic acidethylester | | | | |
| 4904-00-1 | | (e)-methano | | | | |
| 4904-21-6 | 4-环丙基吡啶 | 4-cyclopropylpyridine | | | | |
| 4904-61-4 | 1,5,9-环十二烷三烯 | 1,5,9-Cyclododecatriene | C12H18 | 162.27 | | |
| 4905-45-7 | | 3α-Hydroxy-12,29-cycloolean-12-en-29-one acetate | C32H48O3 | 480.72 | | |
| 4905-83-3 | 异丙胺溴氢酸盐 | iso-Propylamine hydrobromide | C3H10BrN | 140.02 | | |
| 4905-96-8 | | (R,S)-2-Bromo-1,2,2-trifluoro-N,N-bis-(trifluoromethyl)ethylamine | C4HBrF9N | 313.95 | | |
| 4905-97-9 | | 2-Bromo-2-chloro-1,1,2-trifluoro-N,N-bis(trifluoro-methyl)ethylamine | C4BrClF9N | 348.39 | | |
| 4905-98-0 | | 2-bromo-1,2-dichloro-1,2-difluoro-N,N-bis(trifluoro-methyl)ethylamine | C4BrCl2F8N | 364.85 | | |
| 4906-22-3 | 4-(3,5-二甲基-4-氧代-2,5-环己二烯-1-基)-2,6-二甲基-2,5-环己二烯-1-酮 | 5-Cyclohexadien-1-one, 4-(3,5-dimethyl-4-oxo-2,5-cyclohexadien-1-ylidene)-2,6-dimethyl-2 | C16H16O2 | | | |
| 4906-24-5 | | 3-(acetyloxy)-2-butanon | | | | |
| 4906-25-6 | | methyl 4-n-butoxybenzoate | C12H16O3 | 208.25 | | |
| 4906-35-8 | | Benzenecarbothioic acid S-(4-chlorophenyl)ester | C13H9ClOS | 248.73 | | |
| 4906-68-7 | aldo-keto reductase family 1 member c1 inhibitor, 5-pbsa, 3-bromo-5-phenylsalicylic acid, 20α-hydroxysteroid dehydrogenase inhibitor, 5-pbsa | akr1c1 inhibitor, 5-pbsa-cas 4906-68-7-calbiochem | | | | |
| 4906-84-7 | | deacylcortivazol | | | | |
| 4906-87-0 | | carbon-12c monoxide-18o | CO | 28.01 | | |
| 4907-38-4 | | 4-methylphenyl stearate | | | | |
| 4907-61-3 | | 4,4'-methylenebis(1,3-diphenyl-1-ethylurea) | | | | |
| 4907-84-0 | | gamma)-propylamine, n,n-dimethyl-thioxanthene-delta(sup hydrochloride | | | | |
| 4908-96-7 | | 2-Bromo-1,1,2,3,3,3-hexafluoro-N,N-bis(trifluoromethyl)propylamine | C5BrF12N | 381.94 | | |
| 4908-99-0 | | (R,S)-2-Bromo-1,1,2-trifluoro-N,N-bis-(trifluoromethyl)ethylamine | C4HBrF9N | 313.95 | | |
| 4909-58-4 | | ethyl-scc | | | | |
| 4909-78-8 | | n,n-dimethylformamide dineopentyl acetal | C13H29NO2 | 231.37 | | 85-87℃(1 |
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