| CAS登录号 | 中文名 | 英文名 | 分子结构式 | 分子式 | 详情 | 供应商 |
| 50-06-6 | 苯巴比妥; 5-乙基-5-苯基-1-甲基-2,4,6-(1H,3H,5H)-嘧啶三酮 | Phenobarbital; Luminal; 5-Ethyl-5-phenyl-2,4,6-PYrimidinetrione; 5-Ethyl-5-phenylbarbituric acid |  | C12H12N2O3 | 详情 | 供应商 |
| 50-33-9 | 保泰松; 苯基丁氮酮; 4-丁基-1,2-二苯基-3,5-吡唑烷二酮 | Phenylbutazone; 4-Butyl-1,2-diphenyl-3,5-PYrazolidinedione; 1,2-Diphenyl-3,5-dioxo-4-n-butylPYrazoline |  | C19H20N2O2 | 详情 | 供应商 |
| 50-34-0 | 溴丙胺太林; 溴丙胺肽林; (2-羟乙基)二异丙基甲基溴化铵咕吨-9-羧酸酯 | Propantheline bromide; (2-Hydroxyethyl)diisoproPYlmethylammonium bromide xanthene-9-carboxylate |  | C23H30NO3.Br | 详情 | 供应商 |
| 50-71-5 | 阿脲; 四氧嘧啶 | Alloxan; 2,4,5,6(1H,3H)-PYrimidinetetraone |  | C4H2N2O4 | 详情 | 供应商 |
| 51-03-6 | 增效醚; 胡椒基丁醚; 3,4-亚甲二氧基-6-正丙基苄基正丁基二缩乙二醇醚 | Piperonyl butoxide; 2-(2-Butoxyethoxy)ethyl 6-proPYlpiperonyl ether; 4,5-Methylenedioxy-2-proPYlbenzyldiethyleneglycol butyl ether; PBO |  | C19H30O5 | 详情 | 供应商 |
| 51-15-0 | 2-吡啶醛肟甲氯 | 2-PYridinealdoxime methochloride; 2-PAM chloride; Pralidoxime chloride |  | C7H9ClN2O | 详情 | 供应商 |
| 51-20-7 | 5-溴尿嘧啶 | 5-Bromouracil; 5-Bromo-2,4(1H,3H)-PYrimidinedione; 5-BromoPYrimidine-2,4-diol |  | C4H3BrN2O2 | 详情 | 供应商 |
| 51-21-8 | 5-氟脲嘧啶; 5-氟-2,4(1H,3H)-嘧啶二酮 | 5-Fluorouracil; 5-Fluoro-2,4(1H,3H)-PYrimidinedione; 5-Fluoro-2,4-PYrimidinedione; 5-FluoroPYrimidine-2,4-dione |  | C4H3FN2O2 | 详情 | 供应商 |
| 51-30-9 | 盐酸异丙肾上腺素; 4-[(2-异丙氨基-1-羟基)乙基]-1,2-苯二酚盐酸盐 | Isoprenaline hydrochloride; 3,4-Dihydroxy-alpha-((isoproPYlamino)methyl)-benzyl alcohol hydrochloride; 4-(1-Hydroxy-2-((methylethyl)amino)ethyl)-1,2-benzenediol hydrochloride; Aludrine hydrochloride |  | C11H18ClNO3 | 详情 | 供应商 |
| 51-35-4 | L-羟基脯氨酸; L-羟脯氨酸; 反式-4-羟基-L-脯氨酸 | L-Hydroxyproline; trans-4-Hydroxy-L-proline; (2S,4R)-(-)-4-Hydroxy-2-PYrrolinecarboxylic acid |  | C5H9NO3 | 详情 | 供应商 |
| 51-52-5 | 丙基硫氧嘧啶; 6-丙基-2-巯基-4-羟基嘧啶; 6-丙基-2-硫代-2,3-二氢-4(1H)-嘧啶酮 | ProPYlthiouracil; 6-ProPYl-2-thiouracil; 2-Mercapto-6-proPYlPYrimid-4-one; 4-Hydroxy-2-mercapto-6-proPYlPYrimidine |  | C7H10N2OS | 详情 | 供应商 |
| 52-53-9 | 维拉帕米; 5-((3,4-二甲氧基苯乙基)甲基氨基)-2-(3,4-二甲氧基苯基)-2-异丙基戊腈 | Verapamil; (2R)-2-(3,4-Dimethoxyphenyl)-5-{[2-(3,4-dimethoxyphenyl)ethyl](methyl)amino}-2-isoproPYlpentanenitrile; 5-((3,4-Dimethoxyphenethyl)methylamino)-2-(3,4-dimethoxyphenyl)-2-isoproPYlvaleronitrile |  | C27H38N2O4 | 详情 | 供应商 |
| 53-59-8 | 烟酰胺腺嘌呤双核苷酸磷酸盐; 烟酰胺腺嘌呤双核甙酸磷酸盐; 辅酶II; NADP | TriphosphoPYridine nucleotide; beta-Nicotinamide adenine dinucleotide phosphate; beta-NADP |  | C21H28N7O17P3 | 详情 | 供应商 |
| 53-84-9 | 烟酰胺腺嘌呤双核苷酸; 烟酰胺腺嘌呤双核甙酸; 辅酶I; NAD | beta-DiphosphoPYridine nucleotide; beta-Nicotinamide adenine dinucleotide; beta-DPN; beta-NAD |  | C21H27N7O14P2 | 详情 | 供应商 |
| 54-11-5 | 烟碱; 尼古丁 | L-Nicotine; (-)-1-Methyl-2-(3-PYridyl)PYrrolidine; 3-(1-Methyl-2-PYrrolidinyl)PYridine |  | C10H14N2 | 详情 | 供应商 |
| 54-28-4 | D-gamma-生育酚; [2R-[2R*(4R*,8R*)]]-3,4-二氢-2,7,8-三甲基-2-(4,8,12-三甲基十三烷基)-2H-1-苯并吡喃-6- | D-gamma-Tocopherol; [2R-[2R*(4R*,8R*)]]-3,4-Dihydro-2,7,8-trimethyl-2-(4,8,12-trimethyltridecyl)-2H-benzoPYran-6-ol |  | C28H48O2 | 详情 | 供应商 |
| 54-47-7 | 磷酸吡哆醛; 吡多醛-5-磷酸酯; 3-羟基-2-甲基-5-[(磷酰氧基)甲基]-4-吡啶甲醛 | PYridoxal phosphate; PYridoxal 5'-(dihydrogen phosphate); 3-Hydroxy-2-methyl-5-[(phosphonooxy)methyl]-4-PYridinecarboxaldehyde |  | C8H10NO6P | 详情 | 供应商 |
| 54-85-3 | 异烟肼; 吡啶-4-甲酰肼 | Isoniazid; Isonicotinic acid hydrazide; INAH; PYridine-4-carbohydrazide |  | C6H7N3O | 详情 | 供应商 |
| 54-96-6 | 3,4-二氨基吡啶 | 3,4-DiaminoPYridine; 3,4-DiaminoPYridine |  | C5H7N3 | 详情 | 供应商 |
| 55-22-1 | 异烟酸; 4-吡啶甲酸 | Isonicotinic acid; 4-PYridinecarboxylic acid; PYridine-4-carboxylic acid |  | C6H5NO2 | 详情 | 供应商 |
