中文名:聚乙二醇550單甲醚 別名:聚乙二醇550單甲醚/聚乙二醇單甲醚/聚乙二醇甲醚/甲氧基聚乙二醇/α-甲基-ω-羥基聚環(huán)氧乙烷/α-甲基-ω-羥基聚氧乙烯/MPEG 550 規(guī)格:BR 包裝:100克 :9004-74-4 保存條件:RT 生化試劑根據(jù)用途不同對其純度及技術(shù)均有一定的要求。例如酶試劑,有粗制酶、結(jié)晶酶、多次結(jié)晶酶以及不含某些雜酶的酶制劑等多種。 生化試劑有三種方法: ①從生物體中分離、提純; ②化學(xué)合成; ③發(fā)酵。 對生化試劑產(chǎn)品的技術(shù)要求有:含量、熔點(diǎn)、冰點(diǎn)、旋光度、含水量、光譜特征、折光、密度和生物活性等。 其他生化試劑類產(chǎn)品:5-BroMo-2-(1,1-diMethylethyl)pyridine 5-溴-2-叔丁基吡啶 39919-58-9 5-BROMO-2-TRIFLUOROMETHOXY-PYRIDINE 5-溴-2-三氟甲基吡啶 886371-77-3 5-BroMo-2-(trifluoroMethyl)pyriMidine 5-溴-2-三氟甲基嘧啶 799557-86-1 5-BroMo-2,3-dichloropyridine 5-溴-2,3-二氯吡啶 97966-00-2 5-BROMO-2-CHLORO BENZOIC ACID 5-溴-2-氯苯甲酸 21739-92-4 5-BROMO-2-CHLORO-1H-BENZIMIDAZOLE 5-溴-2-氯-1H-苯并[D]咪唑 683240-76-8 5-BroMo-2-chloro-3-fluoropyridine 2-氯-3-氟-5-溴吡啶 831203-13-5 5-BROMO-2-CHLOROPYRIDINE 5-溴-2-氯吡啶 53939-30-3 5-broMo-2-chloropyriMidine 5-溴-2-氯嘧啶 32779-36-5 5-BROMO-2-METHYL-3-NITROPHENYL METHYLCARBOXYLATE 5-溴-2-甲基-3-硝基苯甲酸甲酯 220514-28-3 5-BROMO-2-METHYL-3-NITROPYRIDINE 5-溴-2-甲基-3-硝基吡啶 911434-05-4 5-BroMo-2-Methylbenzoic acid 2-甲基-5-溴苯甲酸 79669-49-1 5-broMo-2-nitrobenzenaMine 5-溴-2-硝基苯胺 5228-61-5 5-BroMo-2-nitrophenol 5-溴-2-硝基苯酚 27684-84-0 5-BroMo-2-nitropyridine 5-溴-2-硝基吡啶 39856-50-3 5-BroMo-3-hydroxyisoindolin-1-one 5-BROMO-3-HYDROXYISOINDOLIN-1-ONE 573675-39-5 5-BroMo-3-Methoxypicolinic acid 1142191-66-9 5-BROMO-3-METHYLTHIOPHENE-2-CARBOXYLIC ACID 5-溴-3-甲基噻吩-2-甲酸 38239-45-1 5-BroMo-4-chloro-3-indolyl-alpha-D-N-acetylneuraMinic acid sodiuM salt 5-溴-4-氯-3-吲哚基-alpha-D-N-乙酰神經(jīng)氨酸鈉鹽 160369-85-7 5-BROMO-4-METHYL-2-THIAZOLECARBOXYLIC ACID 5-溴-4-甲基噻唑-2-羧酸 874509-45-2 5-BroMo-4-Methylisoquinoline 651310-24-6 5-BroMo-6-Methoxypyridine-2-carboxylic acid 1214334-70-9 5-BroMo-7-fluoroisoindolin-1-one 957346-37-1 5-BROMO-7H-PYRROLO[2,3-D]PYRIMIDINE 5-溴-7H-吡咯并[2,3-D]嘧啶 175791-49-8 5-BroMo-benzene-1,3-diaMine 5-溴-1,3-苯二胺 33786-90-2 5-broMobenzo[c]isothiazole 5-溴苯并異噻唑 20712-07-6 5-BROMOISOQUINOLIN-1-AMINE 5-溴異喹啉-1-胺 852570-80-0 5-BroMo-paps 67987-08-7 5-BROMOPENTANOIC ACID, T-BUTYL ESTER 88987-42-2 5-broMovanillic acid 6324-52-3 5-Carboxyfluorescein N-succiniMidyl ester 5-羧基熒光素琥珀酰亞胺酯 92557-80-7 |