53956-04-0 甘草酸铵盐说明书

名称：53956-04-0 甘草酸铵盐说明书
规格：5克|25克|100克
等级：BR,98%
英文名称：Glycyrrhizic acid ammonium salt；Glycyrrhizin；3-O-(2-O-β-D-Glucopyranuronosyl-α-D-glucopyranuronosyl)-18β-glycyrrhetinic acid ammonium salt
别名：甘草酸铵；甘草酸单铵盐；(3β,20β)-20-羧基-11-氧代-30-正齐墩果-12-烯-3-基2-O-β-D-吡喃葡糖基-α-D-吡喃葡糖艾杜糖醛酸；氨化甘草甜；氨化甘草甜素
CAS号：53956-04-0
C42H62O16·NH3=839.96
级别：BR
含量：≥98.0%
氯化物：≤0.014%
硫酸盐：≤0.029%
干燥失重：≤6.0%
灼烧残渣：≤0.1%
重金属：≤10ppm
外观：白色或淡黄色粉末。味甜。溶于冰乙酸、氨水
用途：生化研究。甘草类甜根的生物活性组分
保存：2～8℃


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·蛋白酶S
CAS：66676-43-5
英文名称： Protease S Aureus
等级：BR,500u/mg
规格：1毫克|5毫克
英文名称：Protease S Aureus；Endoproteinase Glu-C from Staphylococcus aureus V8；V8 Protease
CAS号：66676-43-5
级别：BR
来源：Staph aureus V8
Activity：≥500units/mg
活力定义：One Unit causes a change of 0.001 A280 nm per minute at 37℃, pH 7.8 using casein as the substrate
产品描述：Protease S. aureus V8 (Endoproteinase-Glu-C) specifically cleaves peptide bonds on the COOH-terminal side of either aspartic or glutamic acids. In the presence of ammonium, the enzyme specificity is limited to glutamic sites. It has a molecular weight of 27,000 daltons ａnd optimum pH＇s of 4.0 ａnd 7.8 with hemoglobin as the substrate. Protease S. aureus V8 is inhibited by diisopropylfluorophosphate ａnd monovalent anions such as F-, Cl-, CH3COO- ａnd NO3. Enzyme activity is determined by the casein digestion assay described by Drapeau (Methods Enzymol., 45, 469, 1976).
外观：粉末。
用途：生化研究。
保存：2～8℃

·乙酰水杨酸
CAS：50-78-2
英文名称：Acetylsalicylic acid
等级：BR,99%,有害品
规格：100克|250克|500克
英文名称：Acetylsalicylic acid；2-Acetoxybenzoic acid；Aspirin
别名：阿斯匹林；邻醋酸基苯甲酸；阿司匹林；乙酰基柳酸；醋柳酸；邻乙酰基水杨酸
CAS号：50-78-2
C9H8O4 =180.16
级别：BR
含量：≥99.0%
熔点：135～140℃
重金属：≤10ppm
氯化物：≤140ppm
硫酸盐：≤0.04%
硫酸盐灰分：≤0.05%
游离水杨酸：≤0.1%
干燥失重：≤0.50%
外观：白色结晶或白色结晶粉末。无气味，微带酸味。在干燥空气中稳定，在潮湿空气中缓缓水解成水杨酸和乙酸。能溶于乙醇，乙迷和氯坊，微溶于水，在氢氧化碱溶液或碳酸碱溶液中能溶解，但同时分解
用途：生化研究。检定锰。有机合成。
保存：RT

·5-腺苷二磷酸二钠盐
CAS：16178-48-6
英文名称：5＇-ADP,Na2
等级：高纯,98%
规格：1克|5克|25克|100克
英文名称：5＇-ADP，Na2；Adenosine 5＇-diphosphate disodium salt；ADP-Na2；ADP disodium salt
别名：5-二磷酸腺苷二钠盐；焦磷酸腺苷；ADP钠盐
CAS号：16178-48-6
C10H13N5Na2O10P2=471.16
级别：High purity grade
纯度：≥98.0%(HPLC)
PH：3.0～5.0
A250/A260=0.79～0.89
A280/A260=0.17～0.27
干燥失重：≤10.0%
外观：白色粉末。易溶于水，易潮解
用途：生化研究。
保存：-20℃

·L-阿拉伯树胶糖醇
CAS：7643-75-6
英文名称：L-Arabinitol
等级：BR,98%
规格：1克|5克|25克|100克
英文名称：L-(-)-Arabitol；L-Arabinitol
别名：L-阿糖醇；L-树胶糖醇；贝他米松-21-丙酸酯；L-阿拉伯糖醇；L-(-)-阿糖醇；L-(-)-阿拉伯糖醇
CAS号：7643-75-6
C5H12O5=152.15
级别：BR
含量：≥98%
重金属：≤10ppm
性状(以下信息仅供参考)：白色或类白色粉末。溶于水、90%乙醇
用途：本品仅供科研，不得用于其它用途。(以下用途仅供参考)
保存：RT

·脂质体2000
编号：YM28174
CAS：7643-75-6
英文名称：Lipofectamine 2000 Transfection Reagent
等级：BR,有害品
规格：0.75毫升|1.5毫升
英文名称：Lipofectamine 2000 Transfection Reagent；Lipofection 2000
级别：BR
Lipofectamine 2000 Transfection Reagent is a proprietary cationic lipid formulation that offers the highest transfection efficiencies ａnd protein expression levels on the widest variety of adherent ａnd suspension cell lines. A large percentage of our customers also use this reagent for RNAi gene knockdown experiments. It is the leading transfection reagent on the market for simple, effective, ａnd optimal nucleic acid delivery (Figure 1). With Lipofectamine 2000 Reagent you will get:
1. Exceptional transfection efficiency in a broad range of cell lines ａnd high levels of recombinant protein expression
2. Superior performance for siRNA delivery (1) (Figure 2)
3. Proven efficacy in the presence of serum-eliminates the need to change media following transfection
4. A reagent proven to work in high-throughput applications
5. A reliable reagent for establishing stable cell lines
Lipofectamine 2000 Reagent works effectively with many primary cell lines ａnd other difficult-to-transfect cell lines (Figure 3, 4, 5). In addition to its versatility with diverse cell lines, Lipofectamine 2000 allows you to achieve high transfection efficiencies using media with or without serum. For cells sensitive to the absence of serum, add DNA: lipid complexes directly to cells in serum-containing medium. For gene silencing Lipofectamine 2000 Reagent＇s high-efficiency transfections leads to the high levels of gene knockdown needed to achieve successful results.Simply mix Lipofectamine 2000 Reagent with nucleic acid, add to cell culture, ａnd express protein or knock down genes. The simplicity ａnd speed combined with high transfection efficiency make Lipofectamine™ 2000 Reagent ideal for transient protein expression or high throughput RNAi transfections. Transfection conditions can be easily established for automated or robotic systems used in such applications.Protocols, citations, ａnd additional product information for Lipofectamine 2000 can be found in the Cell Lines Database at www.invitrogen.com⁄celllines.
外观：液体
用途：生化研究。Lipofectamine™ 2000转染试剂是一种阳离子脂质体,在体外可以转染许多种哺乳动物细胞，对各类细胞系都可提供的转染效率，具有GX性和操作步骤简单的优点。 其转染效率以及细胞活性取决于许多实验因素,如细胞密度、脂质体和DNA的浓度、脂质体2DNA复合物的作用时间以及是否有其它介质成分如抗生素和血清。
使用Lipofectamine™ 2000试剂，您可以获得：
*在多种细胞系中具有极高地转染效率和较高水平地重组蛋白表达
*传输siRNA的优异性能
*在有血清存在的情况下可保证转染效力——转染后无需更换培养基
*保证可以用于高通量应用的试剂
*用于建立稳定细胞系的可靠试剂
Lipofectamine™ 2000试剂为大多数细胞提供了的转染效率和活性。当存在血清或用于进行蛋白表达的细胞系（如COS-7，CHO和293）时，Lipofectamine™ 2000尤为有效，效率可超过90。是目前应用Z广的转染试剂
保存：2～8℃



53956-04-0 甘草酸铵盐说明书