L-精氨酸/尿素/氨检测试剂盒[快速]

L-精氨酸/尿素/氨检测试剂盒[快速] L-Arginine/Urea/Ammonia (Rapid)
产品货号:K-LARGE
品牌:进口
中文名:L-精氨酸/尿素/氨[快速]检测试剂盒
英文名:Integrated Total Dietary Fibre Assay Kit
规格:150 assays

商品说明:
For the specific and rapid assay of L-arginine, urea and ammonia in grape juice/must and wine. Content:150 assays – 50 of each component
UV-method for the determination of L-Arginine, Urea and Ammonia 
in grape juice, must and wine

Principle:
                            (microbial glutamate dehydrogenase)
(1) 2-Oxoglutarate + NADPH + NH4+ → L-glutamic acid + NADP+ + 
H2O
                     (urease)
(2) Urea + H2O → 2 NH3 + CO2
(arginase)
(3) L-Arginine + H2O → urea + ornithine

Kit size:                             50 assays
Method:                              Spectrophotometric at 340 nm
Reaction time:                    ~ 20 min [ammonia (2 min), urea (6 min),
L-arginine (7 min)] Detection limit:                  0.07 mg/L (ammonia)
0.13 mg/L (urea)
0.37 mg/L (L-arginine)
Application examples:
Grape juice, wine must, wine and other materials (e.g. biological
cultures, samples, etc.)
Method recognition:          Improved method
Advantages

  • Improved assay format
  • Very rapid reactions due to use of uninhibited glutamate dehydrogenase
  • All enzymes supplied as stabilised suspensions
  • Very competitive price (cost per test)
  • All reagents stable for > 2 years after preparation
  • Mega-Calc™ software tool is available from our website for hassle-free raw data processing
  • Standard included
  • Extended cofactors stability

索取产品说明书请联系:18301939375  QQ:3259632176

Sigma 孕酮Progesterone

Sigma 孕酮Progesterone
产品编号 P8783 | CAS号 57-83-0 | SIGMA
英文名:Progesterone
中文名:1.孕甾酮 2.黄体酮 3.黄体素 4.孕酮  5.孕醇 6.黄体激素
Synonym: 4-Pregnene-3,20-dione
CAS Number 57-83-0
Empirical Formula (Hill Notation) C21H30O2
Molecular Weight 314.46
description:synthesized from materials derived from plant source
product line:BioReagent
form:powder
potency:0.1-20 ng/mL
mp:128-132 °C(lit.)
solubility :absolute ethanol: soluble1 mg/mL
suitability :uitable for cell culture

Application

用于细胞培养,研究细胞信号传导和基因表达的甾醇调控
Other Notes
由卵巢黄体产生的类固醇激素。
包装:1, 5, 25 g in glass bottle
Reconstitution
To prepare 20μg/ml stock solution, add 1ml absolute ethanol per mg progesterone, gently swirl to dissolve, add 49ml sterile medium per ml ethanol.
Physical form
室温下为粉末状;分成小份冻存,以避免使用时反复冷冻/解冻
Biochem/physiol Actions
诱导子宫内皮细胞的成熟和分泌活动;抑制排卵。孕酮与乳腺癌的病因有关。

Sigma人血管紧张素 II

Sigma人血管紧张素 II
产品编号 A9525 | CAS号 4474-91-3 | SIGMA

Angiotensin II human    ≥93% (HPLC), powder

CAS号 4474-91-3
分子式: C50H71N13O12
分子量 1046.18
assay    ≥93% (HPLC)
form    powder
total impurities    1.2-10.4% acetate
storage temp.  -20°C
Amino Acid Sequence
Asp-Arg-Val-Tyr-Ile-His-Pro-Phe
Antibody Adsorbant
Asp-Arg-Val-Tyr-Ile-His-Pro-Phe-OH · 2CH3COOH · H2O
Analysis Note
肽含量不低于 75%
Biochem/physiol Actions
血管紧张素 (Ang) II 在调节心血管的血液动力学和结构中起重要作用。Ang II 在成人组织内的大部分已知效应均可归因于血管紧张素 II 类型 I (AT1) 受体。AT1 和 AT2 受体在药理学和生物化学性质上有差别,在心血管血液动力学和细胞生长方面表现出相反的效应。此外,肾素-血管紧张素和一氧化氮生成系统在心血管功能的调节中显示出相互作用的现象。Ang II 刺激血管生成,增加微血管密度。事实上,血管紧张素 II 是由血管紧张素转换酶对血管紧张素原的作用而生成;C-端-组氨酰-亮氨酸裂解。
保存条件: -20°C

Sigma丝裂霉素 C 来源于头状链霉菌

Sigma丝裂霉素 C 来源于头状链霉菌
产品编号 M0503-2mg | CAS号 50-07-7 | SIGMA

Frequently Asked Questions

Frequently Asked Questions are available for this Product.
Application
Mitomycin C is produced by a strain of actinomyces, Streptomyces caespitosus. It contains three anticancer moieties, quinine, urethane, and aziridine groups. It is used to generate mitotically inactive feeder cells in cell culture systems, such as the mitotically inactive fibroblasts used in embryonic stem cell systems.
Biochem/physiol Actions
DNA 合成、细胞核分裂和癌细胞的抑制剂。对革兰氏阳性菌、革兰氏阴性菌、抗酸杆菌有抗菌性。
Caution
This vial contains 2 mg Mitomycin C and 48 mg NaCl. Stock solutions should be filter sterilized and stored at 2-8°C in the dark. Solutions at pH 6-9 can be stored at 0-5°C for up to a week, but if a precipitate forms, a fresh solution should be prepared – the precipitated solution has been proven toxic to cells.
Preparation Note
Mitomycin C is soluble in water at .5 mg/mL, with a pH of 6.0-7.5. It undergoes rapid degradation in acidic solutions with pH<6, and is mostly likely to retain activity in solutions with a pH between 6-9.
Protocols & Applications
Antibiotic Selector for application, solubility, solution stability, working concentration, and mode of action information

Sigma 阿霉素 盐酸盐

Sigma 阿霉素 盐酸盐
产品编号 D1515 | CAS号 25316-40-9 | SIGMA

Frequently Asked Questions

Frequently Asked Questions are available for this Product.
包装:10 mg in glass bottle Biochem/physiol Actions
Naturally fluorescent anthracycline antibiotic, anticancer drug. Doxorubicin is a substrate of MRP1 which was first cloned from a DOX-resistant lung cancer cell line. Fluorescent property has been exploited for the measurement of drug efflux pump activities as well as resolving the important question of intracellular localization of various multidrug resistance proteins and the role of subcellular organelles (Golgi and lysosome) in the sequestration of drugs and its implication in drug resistant phenotypes.
法律信息
Adriamycin 为以下机构的注册商标: RDF Pharmacia & Upjohn S.P.A.
Protocols & Applications
Antibiotic Selector for application, solubility, solution stability, working concentration, and mode of action information

Related Categories Antibiotics, Antibiotics A to Z, Antibiotics A-F, Antibiotics by Application, Antineoplastic and Immunosuppressive Antibiotics,

更多…
assay 98.0-102.0% (HPLC)
mp 216 °C (dec.)(lit.)
solubility H2O: soluble50 mg/mL, clear
Mode of action DNA synthesis | interferes
antibiotic activity spectrum viruses
storage temp. 2-8°C

Sigma 放线菌素 D

Sigma 放线菌素 D

产品编号 A9415 | CAS号 50-76-0 | SIGMA

Frequently Asked Questions

Frequently Asked Questions are available for this Product.
Application
Actinomycin D is an antineoplastic antibiotic that inhibits cell proliferation with wide-ranging applications ranging from a selection agent in cell culture, use in studies of suppressing HIV-replication and programmed cell death of PC12 cells, and as an antibiotic in treatment of various malignant neoplasms, including Wilm′s tumour and the sarcomas. Recommended for us in cell culture applications at 1μg/mL.
Caution
This product is hygroscopic and light-sensitive. If stored protected from light and moisture at 2-8°C, it remains unchanged, by HPLC testing, for at least 15 months. Unused dilute solutions of Actinomycin D are extremely sensitive to light and tend to adsorb to plastic and glass and should be discarded. However, frozen aliquots of concentrated stock solution are stable for at least a month.
包装:2, 5, 10, 25 mg in glass bottle
Preparation Note
Actinomycin D is sold as red, shiny crystals and is soluble in acetonitrilie or acetone at 10 mg/mL and in DMSO at a minimum of 1 mg/mL. Some references also show slight solubility in water of 0.5 mg/mL.
Biochem/physiol Actions
Actinomycin D inhibits the proliferation of cells by forming a stable complex with double-stranded DNA, inhibiting DNA-primed RNA synthesis and causing single-stranded breaks in DNA. It has been shown to be an inhibitor of the minus-strand transfer step in reverse transcriptase.
Protocols & Applications
Antibiotic Selector for application, solubility, solution stability, working concentration, and mode of action information

Sigma 二甲基亚砜DMSO

Sigma 二甲基亚砜DMSO

产品编号 D2650 | CAS号 67-68-5 | SIGMA
Frequently Asked Questions
Frequently Asked Questions are available for this Product.
Application
DMSO 是一种用于化学反应(如聚合酶链式反应 (PCR))的极性非质子溶剂,也可作为冷冻保护玻璃化剂用于保存细胞、组织和器官。DMSO 可在细胞冷冻培养基中用于保护细胞免受冰晶导致的机械损伤。它可用于原代、继代培养和重组的异倍体和杂交瘤细胞系、胚胎干细胞 (ESC) 以及造血干细胞的冻存。DMSO 常与 BSA 或胎牛血清 (FBS) 一同使用。
Caution
容易过度冷却,并在室温下缓慢融化固化的产品放在室温下可以再次液化,对其本身无影响。
Other Notes
This product is a Hybri-Max product. It is hybridoma tested and is assessed for suitability in cell freezing. This product is sterile filtered (0.2 micron) and tested for endotoxin levels.
包装:5mL 和 10mL 火焰封口安瓿瓶包装,100mL 棕色瓶包装

sigma 醋氨酚BioXtra

sigma 醋氨酚BioXtra

产品编号 A7085 | CAS号 103-90-2 | SIGMA-ALDRICH

Application:镇痛剂。

包装:1 kg in glass bottle,100, 500 g in glass bottle

Related Categories Building Blocks, C6 to C8, Chemical Synthesis, Organic Building Blocks, Oxygen Compounds,

更多…
product line BioXtra
assay ≥99.0%
form powder
impurities ≤0.0005% Phosphorus (P)
≤0.1% Insoluble matter
ign. residue ≤0.1%
mp 168-172 °C(lit.)

sigma-白蛋白 来源于牛血清

sigma-白蛋白 来源于牛血清

产品编号 A3803 | CAS号 9048-46-8 | SIGMA

包装:10, 50, 100 g in poly bottle

Preparation Note
Serum albumin may be referred to as Fraction V. This naming convention is taken from the original Cohn[] method of fractionating serum proteins using cold ethanol precipitation. Serum albumin was found in the fifth ethanol fraction using Cohn′s method. Since then, the term “Fraction V” has been used by some to describe serum albumin regardless of the method of preparation. Others have used this term to describe serum albumin purified by ethanol fractionation methods that have been highly modified since the original Cohn method was described. Sigma-Aldrich manufactures and distributes serum albumins purified from a variety of primary methods including the true Cohn fractionation method, modified ethanol fractionation methods, heat shock and chromatography. Additional purification steps may include crystallization or charcoal filtration.
采用热休克分级分离法制备。经过进一步纯化以降低脂肪酸含量。

Biochem/physiol Actions

Certain conformational and primary-sequence epitopes of BSA are suspected allergens in human beef and milk allergies.

Related Categories Albumin, Bovine Serum Albumins, Heat Shock Fractionated, 生化试剂, 蛋白质及衍生物 更多…
assay ≥98% (agarose gel electrophoresis)
form lyophilized powder
mol wt mol wt ~66 kDa
purified by heat shock fractionation
packaging poly bottle of
origin USA origin
impurities ≤0.005% Fatty acids

 
产品编号 A8806 | CAS号 9048-46-8 | SIGMA

包装:1, 5 g in poly bottle

Preparation Note
Serum albumin may be referred to as Fraction V. This naming convention is taken from the original Cohn[] method of fractionating serum proteins using cold ethanol precipitation. Serum albumin was found in the fifth ethanol fraction using Cohn′s method. Since then, the term “Fraction V” has been used by some to describe serum albumin regardless of the method of preparation. Others have used this term to describe serum albumin purified by ethanol fractionation methods that have been highly modified since the original Cohn method was described. Sigma-Aldrich manufactures and distributes serum albumins purified from a variety of primary methods including the true Cohn fractionation method, modified ethanol fractionation methods, heat shock and chromatography. Additional purification steps may include crystallization or charcoal filtration.
通常称为 Cohn fraction V;本品采用改进的 Cohn 氏冷乙醇分级分离法制备。

Biochem/physiol Actions

Certain conformational and primary-sequence epitopes of BSA are suspected allergens in human beef and milk allergies.[]
Protocols & Applications
Select the right albumin for your application with the Albumin Selection Guide

Related Categories Albumin, Albumins, Albumins and Transport Proteins,Albumins by Application, Bioactives and Supplements for Stem Cell Expansion,

更多…
Quality Level PREMIUM
product line BioReagent
assay ≥96% (agarose gel electrophoresis)
form lyophilized powder
mol wt mol wt ~66 kDa
purified by cold ethanol fractionation
packaging poly bottle of

Sigma特殊产品Thiopropyl–Sepharose® 6B

Sigma特殊产品Thiopropyl–Sepharose® 6B

产品编号 T8387 | CAS号 68517-67-9 | SIGMA

包装:1, 5, 15 g in poly bottle

Physical form
Lyophilized powder stabilized with lactose and dextran
Application
Thiopropyl Sepharose® 6B is used in protein chromatography, affinity chromatography and hydrophobic interactions. Thiopropyl Sepharose® 6B has been used for the removal of inhibitors from PCR extracts from evidence collected for law enforcement murder investigations. Thiopropyl Sepharose® 6B has also been used to describe a method for the investigation of functional properties of distinct domains of viral thiol proteins, including the influenza virus membrane M1 protein.
法律信息
Sepharose is a registered trademark of GE Healthcare

Amresco Tris 三羟甲基氨基甲烷(超纯级) 0497

Amresco Tris 三羟甲基氨基甲烷(超纯级) 0497

中文名称:2-氨基-2-羟甲基-1,3-丙二醇
中文别名:三(羟甲基)氨基甲烷; 氨丁三醇; 缓血酸铵; 三羟甲基氨基甲烷; Tris
CAS No:77-86-1
EINECS号:201-064-4
分子式:C4H11NO3
沸点:219-220℃ (10 mmHg)
闪光点:100℃
密度:1.353
水溶性:550 g/L (25℃)
外观白色 结晶粉末
用途:主要用于医药中间体

Acrylamide 甲叉丙烯酰胺 Amresco 0712 CAS:110-26-9

产品名称:Bis-Acrylamide甲叉丙烯酰胺 Amresco 0712 CAS:110-26-9
产品货号:0172
英文名:Bis-Acrylamide
规格:100G
产地:USA
品牌商标:Amresco
保质期:3年
保修期:3年
保存条件:RT
产品名称:Bis-Acrylamide 甲叉丙烯酰胺 Amresco 0712 CAS:110-26-9
产品关键词:Bis-Acrylamide,甲叉丙烯酰胺,Amresco,0712,CAS:110-26-9
Bis-Acrylamide
产品信息:
产品名称    :甲叉丙烯酰胺,N,N-亚甲基双丙烯酰胺,N,N-亚甲基二丙烯酰胺;N,N-亚甲基双丙稀酰胺;甲叉双丙烯酰胺;N,N′-亚甲基双丙烯酰胺;N,N’-甲叉双丙烯酰胺;N,N’-甲撑双丙烯酰胺;次甲基双丙烯酰胺;亚甲基双丙烯酰胺
英文名称:n,n’-Methylenebisacrylamide;Bis;Bisacrylamide;Bis(Acrylamido)Methane; Diacrylamidomethane; Mba; Methylenebisacrylamide; Napp; n,n’-Methylenebis(2-Propenamide); n, n-Methylene-Bis-Acrylamide; n,n’-Methylenebis(Acrylamide)-Hg; n,n’-Methylenediacrylamide; n,n’-Methylenesbisacrylamide; Acrylamide, n,n’-Methylenebis-; Methylenediacrylamide; n,n’-Methylenebis-2-Propenamid; n,n’-Methylenebis-Acrylamid; n,n’-Methylidenebis[Acrylamide]
产品性状:白色结晶粉末,无味,吸湿性极小。遇高温或强光则自交联,微溶于水、乙醇。溶于水和水的丙酮的混合液。20℃时水中可溶0.31g/ml,水溶液可因水解而形成丙烯酸和氨。熔点>300℃。中等毒,半数致死量(大鼠,经口)390mg/kg。有刺激性。本品因有取代基丙烯酰胺,因此具有一定的毒性。能轻微刺激眼睛、皮肤和粘膜。应避免与人体长时间直接接触。误触应用清水洗净
溶解性:微溶于水、乙醇
用途:甲叉丙烯酰胺用于生化研究。生物高分子化合物(蛋白质、多肽、核酸)的分离。聚丙烯酰胺凝胶技术和临床检验。与丙烯酰胺共聚可制成油田压裂液,与某种单体共聚制取不溶性树脂,可用作堵水灌浆材料。亦可用作制备聚丙烯酰胺凝胶的交联剂。用于生产印染助剂、餐巾、保健用尿布和其它工业所用的高吸水树脂。临床检验是分离氨基酸的重要材料。在地下建筑中,AAM、MBA注入土层所形成的不溶性凝胶对土层进行强化,防止渗水。加入混凝土可缩短混凝土的养护,提高耐水性。另外MBA在电子、造纸、印刷制版、合成树脂改性以及涂料、粘合剂等方面也广泛应用
储存条件    :常温
Amresco相关资料如下
Product: :Bis-Acrylamide
Grade: Ultra Pure Grade
Synonym(s): N,N′-Methylene-Bis-Acrylamide
Molecular Weight: 154.17
Molecular Formula: C7H10O2N2
Code: 0172
CAS:110-26-9
订购信息:

品名 产地 货号 规格 单价 备注
Bis-Acrylamide Amresco 0172 100G 215 现货
Bis-Acrylamide Amresco 0172 500G 950 现货

WAKO真菌毒素标准品

日本和光WAKO真菌毒素标准品

现在食品的安全、稳定是一大问题。日本有6成的食材是依靠国外进口,因而进口食品的真菌毒素(霉毒)污染是一个深刻的问题。

这里介绍以系真菌毒素为中心的标准品。

■3-乙酰基脱氧雪腐镰刀菌烯醇标准品(014-22621)

■呕吐霉素(脱氧雪腐镰刀菌烯醇)标准品(047-31041)

■西地霉素(瓜萎镰菌醇n-水合物)标准品(149-08741)

■镰刀菌酮- X标准品(065-05431)

■蛇形菌素(二醋酸麃草镰刀菌烯醇)标准品(044-31051)

■T-2霉素标准品(204-17731)

■赭曲霉毒素A标准品(153-02961)

产品编号

品名

规格

包装

014-22621

3-Acetyldeoxynivalenol Standard

真菌毒素实验

5mg

047-31041

Deoxynivalenol Standard

真菌毒素实验

5mg

044-31051

Diacetoxyscirpenol Standard

真菌毒素实验

5mg

065-05431

Fusarenon X Standard

真菌毒素实验

5mg

149-08741

Nivalenol n-Hydrate Standrd

真菌毒素实验

5mg

204-17731

T-2 Toxin Standard

真菌毒素实验

5mg

153-02961

Ochratoxin A Standard

真菌毒素实验

5mg

请注意13C标记体和预处理柱等。

相关产品

粉末

产品编号

品名

规格

包装

016-17671

Aflatoxin B2

生物化学

10mg

010-17691

Aflatoxin G2

生物化学

10mg

030-17171

Cyclopiazonic Acid

生物化学

5mg

150-02111

Ochratoxin A

生物化学

5mg

168-21631

Patulin

真菌毒素实验

10mg

033-08011

Citrinin Standard

10mg

混合液

产品编号

品名

浓度

规格

包装

014-21141

Aflatoxins Mixture Solution 1

(B1, B2, G1, G2 in Acetonitrile)

B1,G1各2μg/ml

B2,G2各0.5μg/ml

真菌毒素实验

5ml

011-21151

Aflatoxins Mixture Solution 2

(Acetonitrile Solution)

各0.25μg/ml

真菌毒素实验

6ml

065-04951

Fumonisins Mixture Solution

[FB1, FB2 in Acetonitrile: Water(1:1) Solution]

各50μg/ml

真菌毒素实验

5ml

202-16811

B-Trichothecenes Mixture Solution

(DON, NIV, 3-AcDON, 15-AcDON in Acetonitrile)

各100μg/ml

真菌毒素实验

5ml

209-16821

A,B-Trichothecenes,Zearalenone Mixture Solution

(NIV, DON, 3-AcDON, Fus-X, T-2, HT-2, DAS, ZON in Acetonitrile)

各10μg/ml

真菌毒素实验

5ml

单品溶液

产品编号

品名/浓度(μg/ml

规格

包装

019-21071

3-Acetyl-deoxynivalenol Solution (100ug/ml Acetonitrile Solution)

真菌毒素实验

5ml

016-21081

15-Acetyl-deoxynivalenol Solution (100ug/ml Acetonitrile Solution)

真菌毒素实验

5ml

013-21091

Aflatoxin B1 Solution (2ug/ml Acetonitrile Solution)

真菌毒素实验

5ml

016-21101

Aflatoxin B2 Solution (0.5ug/ml Acetonitrile Solution)

真菌毒素实验

5ml

013-21111

Aflatoxin G1 Solution (2ug/ml Acetonitrile Solution)

真菌毒素实验

5ml

010-21121

Aflatoxin G2 Solution (0.5ug/ml Acetonitrile Solution)

真菌毒素实验

5ml

017-21131

Aflatoxin M1 Solution (0.5ug/ml Acetonitrile Solution)

真菌毒素实验

5ml

046-30151

Deepoxy-deoxynivalenol Solution (50ug/ml Acetonitrile Solution)

真菌毒素实验

5ml

043-30161

Deoxynivalenol Solution (100ug/ml Acetonitrile Solution)

真菌毒素实验

5ml

040-30171

Diacetoxyscirpenol Solution (100ug/ml Acetonitrile Solution)

真菌毒素实验

5ml

060-04901

Fumonisin B1 Solution [ 50ug/ml Acetonitrile:Water(1:1) Solution]

真菌毒素实验

5ml

067-04911

Fumonisin B2 Solution [50ug/ml Acetonitrile:Water(1:1) Solution]

真菌毒素实验

5ml

068-04941

Fusarenon X Solution (100ug/ml Acetonitrile Solution)

真菌毒素实验

5ml

083-08491

HT-2 Toxin Solution (100ug/ml Acetonitrile Solution)

真菌毒素实验

5ml

144-08431

Neosolaniol Solution (100ug/ml Acetonitrile Solution)

真菌毒素实验

5ml

147-08421

Nivalenol Solution (100ug/ml Acetonitrile Solution)

真菌毒素实验

5ml

159-02701

Ochratoxin A Solution (10ug/ml Acetonitrile Solution)

真菌毒素实验

5ml

166-22771

Patulin Solution (100ug/ml Acetonitrile Solution)

真菌毒素实验

5ml

205-16801

T-2 Toxin Solution (100ug/ml Acetonitrile Solution)

真菌毒素实验

5ml

267-01911

Zearalenone Solution (100ug/ml Acetonitrile Solution)

真菌毒素实验

5ml