中文名:二甲酚橙 別名:二甲酚橙/二甲酚桔黃/3,3′-雙[N,N-二(羧甲基)氨基甲基]鄰甲酚磺酰酞/鄰甲酚磺酰酞-3,3′-雙甲基亞氨基二乙酸/三鈉鹽/二甲苯酚橙鈉鹽/鈉鹽/二甲酚桔黃鈉鹽/Xylenol Orange 規(guī)格:AR,75% 包裝:5克 :63721-83-5 保存條件:RT 生化試劑根據(jù)用途不同對(duì)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(duì)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:C7H9F3O3S 19GV : 28075-50-5 2-溴異氰酸乙酯 2-Bromoethyl isocyanate BrCH2CH2NCO 1A4Q : 42865-19-0 氘代十八烷酸(2,2-D2) Stearic acid-2,2-d2 CH3(CH2)15CD2CO2H 190T : 19905-58-9 乙酰苯-2',3',4',5',6'-d5 Acetophenone-2',3',4',5',6'-d5 C6D5COCH3 19GW : 28077-64-7 3-(4-甲氧基苯氧基)-1-丙磺酰氯 3-(4-Methoxyphenoxy)-1-propanesulfonyl chloride H3COC6H4O(CH2)3SO2Cl 1C85 : 118943-25-2 α-甲基-4-硝基苯乙酸 2-(4-Nitrophenyl)propionic acid CH3CH(C6H4NO2)CO2H 190U : 19910-33-9 鐠(Ⅲ)乙酰丙酮水合物 Praseodymium(III) acetylacetonate hydrate Pr(C5H7O2)3 · xH2O 19GX : 28105-87-5 3-[2,5-二(氯甲基)-4-甲氧基苯氧基]-1-丙磺酰氯 3-[2,5-Bis(chloromethyl)-4-methoxyphenoxy]-1-propanesulfonyl chloride H3COC6H2(O(CH2)3SO2Cl)(CH2Cl)2 1C86 : 118943-26-3 BOC-N-甲基-D-丙氨酸 Boc-N-Me-D-Ala-OH C9H17NO4 190V : 19914-38-6 4-溴苯基硫代乙酸 4-Bromophenylthioacetate BrC6H4SC(O)CH3 19GY : 28122-76-1 仲丁酸酯 sec-Butyl tiglate CH3CH=C(CH3)CO2CH(CH3)C2H5 19GZ : 28127-58-4 3-乙烯基苯甲醛 3-Vinylbenzaldehyde H2C=CHC6H4CHO 190W : 19955-99-8 1,2-O-(1-乙氧基亞乙基)-β-D-甘露吡喃糖三乙酸 1,2-O-(1-Ethoxyethylidene)-β-D-mannopyranose triacetate C16H24O10 19H0 : 28140-37-6 1-乙基-1,2-二氫-6-羥基-4-甲基-2-羰基-3-吡啶甲腈 1-Ethyl-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-3-pyridinecarbonitrile C9H10N2O2 19H1 : 28141-13-1 氯甲烷-13C Chloromethane-13C 13CH3Cl 190X : 19961-13-8 2-甲基烯丙基胺鹽酸鹽 2-Methylallylamine hydrochloride H2C=C(CH3)CH2NH2 · HCl 19H3 : 28148-54-1 1,4,8,11,15,18,22,25-八溴丁氧基-29H,31H-酞菁 1,4,8,11,15,18,22,25-Octabutoxy-29H,31H-phthalocyanine C64H82N8O8 1C69 : 116453-73-7 3,5-二氨基苯甲基醇二鹽酸 3,5-Diaminobenzyl alcohol dihydrochloride (H2N)2C6H3CH2OH·2HCl 19H4 : 28150-15-4 2,3,4-三-O-苯甲基-1-S-乙基-β-L-硫代吡喃巖藻糖苷 2,3,4-Tri-O-benzyl-1-S-ethyl-β-L-thiofucopyranoside C29H34O4S 1C68 : 116391-11-8 聚(1,3-亞丙基琥珀酸) Poly(1,3-propylene succinate) [O(CH2)3O2CCH2CH2CO]n 19H5 : 28158-21-6 4-氯-2-硝基苯酯異氰酸 4-Chloro-2-nitrophenyl isocyanate ClC6H3(NO2)NCO 19H6 : 28162-63-2 2-[2-(芐氧基)乙基]-5,5-二甲基-1,3-二噁烷 2-[2-(Benzyloxy)ethyl]-5,5-dimethyl-1,3-dioxane C15H22O3 1C67 : 116376-29-5 聚六亞甲基二異氰酸酯 Poly(hexamethylene diisocyanate) 19H7 : 28182-81-2 2,5-二氫-2,5-二甲氧基糠基醇 2,5-Dihydro-2,5-dimethoxyfurfuryl alcohol C7H12O4 190Z : 19969-71-2 聚[二(乙烯二醇)/三羥甲基丙烷-alt-肥酸] Poly[di(ethylene glycol)/trimethylolpropane-alt-adipic acid] 19H8 : 28183-09-7 磷酸-17O4 Phosphoric acid-17O4 H3P17O4 1C66 : 116374-21-1 聚(乙烯-co-敗脂酸)鋅鹽 Poly(ethylene-co-acrylic acid) zinc salt 19H9 : 28208-80-2 1-(1-金剛烷基)溴化吡啶 1-(1-Adamantyl)pyridinium bromide C15H20BrN 1910 : 19984-57-7 聚(亞二丙酯二醇)亞磷酸苯酯 Poly(dipropylene glycol) phenyl phosphite (C21H23O5P)n 1C65 : 116265-68-0 聚(二(苯氧基)偶磷氮烯) Poly(bis(phenoxy)phosphazene) (C12H10NPO2)n 19HA : 28212-48-8 (R)-2-羥基丁酸 (R)-2-Hydroxybutyric acid C4H8O3 1911 : 20016-85-7 聚(二(2,2,2-三氟乙氧基)偶磷氮烯) Poly(bis(2,2,2-trifluoroethoxy)phosphazene) (C4H4F6NPO2)n 19HB : 28212-50-2 對(duì)甲苯磺酸四丁基磷 Tetrabutylphosphonium p-toluenesulfonate (CH3CH2CH2CH2)4P(CH3C6H4SO3) 1C64 : 116237-97-9 聚(1,4-亞苯基醚-醚-砜) Poly(1,4-phenylene ether-ether-sulfone) |