63,64-D-半乳-甘露戊糖 63,64-A-D- Galactosyl-Mannopentaose 货号:O-GGM5 Megazyme中文站

63,64-D-半乳-甘露戊糖

英文名:63,64-A-D- Galactosyl-Mannopentaose

货号:O-GGM5

规格:50 mg

CAS: 86781-72-8
Molecular Formula: C42H72O36
Molecular Weight: 1153.0
Purity: > 95%

High purity 63, 64-alpha-D-Galactosyl-mannopentaose for use in research, biochemical enzyme assays and in vitro diagnostic analysis. 

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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

a-耐热性岩藻糖苷酶[海栖热袍菌] α-Fucosidase (Thermostable) (Thermotoga maritima) 货号:E-FUCTM Megazyme中文站

a-耐热性岩藻糖苷酶[海栖热袍菌]

英文名:α-Fucosidase (Thermostable) (Thermotoga maritima)

货号:E-FUCTM

规格:10

High purity recombinant alpha-Fucosidase (Thermostable) (T. maritima) for use in research, biochemical enzyme assays and in vitro diagnostic analysis.

EC 3.2.1.51 
CAZy Family: GH29

α-L-fucoside fucohydrolase.

Recombinant from T. maritima. 
In 3.2 M ammonium sulphate.

Specific activity: 9.6 U/mg (25oC, pH 5.0); 17.6 U/mg (37oC), 62.0 U/mg (60oC), 814 U/mg (95oC).

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原生质体˚F Protoplast F 货号:E-PROTOF Megazyme中文站

原生质体˚F

英文名:Protoplast F

货号:E-PROTOF

规格:2.5 mL

Protoplast F is a lysing enzyme mixture containing cell wall degrading enzymes, e.g. exo-1,3-β-glucanase and endo-1,3-β-glucanase, and is used for generating protoplasts of Aspergillus niger.

The enzyme mixture is supplied as a precipitate in 3.2 M ammonium sulphate. 

Stability: > 2 years 4oC.

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2-氯-4-硝基苯基β-纤维三糖 2-Chloro-4-nitrophenyl-β-cellotrioside 货号:O-CPNPG3-50 Megazyme中文站

2-氯-4-硝基苯基β-纤维三糖

英文名:2-Chloro-4-nitrophenyl-β-cellotrioside

货号:O-CPNPG3-50

规格:50 mg

CAS: 161597-23-5
Molecular Formula: C24H34CINO18
Molecular Weight: 660.0
Purity: > 98%

High purity 2-Chloro-4-nitrophenyl-β-cellotrioside for use in research, biochemical enzyme assays and in vitro diagnostic analysis.

A potential substrate for the measurement of cellulase (endo-1,4-β-glucanase).

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磷酸葡糖异构酶[枯草杆菌] Phosphoglucose isomerase (Bacillus subtilis) 货号:E-PGIBS-50KU Megazyme中文站

磷酸葡糖异构酶[枯草杆菌]

英文名:Phosphoglucose isomerase (Bacillus subtilis)

货号:E-PGIBS-50KU

规格:50000 units

High purity Phosphoglucose isomerase (B. subtilis) for use in research, biochemical enzyme assays and in vitro diagnostic analysis.

EC 5.3.1.9

From Bacillus subtilis. Electrophoretically homogeneous (MW 51,500). Several bands on isoelectric focusing (pI 4.8-5.0).
In 3.2 M ammonium sulphate.

Specific activity: 250 U/mg of protein (25oC, pH 7.6) or 483 U/mg of protein (40oC, pH 7.6).

Stable at 4oC for > 4 years.

Data booklets for each pack size are located in the Technical Resources tab.

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麦芽粉中葡聚糖酶检测底物 Azo-Barley Glucan 100ml 货号:S-ABG100 Megazyme中文站

麦芽粉中葡聚糖酶检测底物

英文名:Azo-Barley Glucan 100ml

货号:S-ABG100

规格:100 mL

Highly purified, low viscosity barley 1,3:1,4-ß-D-glucan dyed with Remazolbrilliant Blue R dye. Recommended substrate for the measurement of ß-glucanase in malt flour.

麦芽粉中葡聚糖酶检测底物

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Alpha葡[萄]糖苷酶 [转葡糖苷酶][黑曲霉] Alpha-Glucosidase(Transglucosidase) 货号:E-TRNGL Megazyme中文站

Alpha葡[萄]糖苷酶 [转葡糖苷酶][黑曲霉]

英文名:Alpha-Glucosidase(Transglucosidase)

货号:E-TRNGL

规格:2000 Units

Alpha葡[萄]糖苷酶 [转葡糖苷酶][黑曲霉]

EC 3.2.1.20
CAZY Family: GH31
From A. niger. In 3.2 M ammonium sulphate.
Specific activity: 70 U/mg (40°C, pH 4.5, maltose as substrate). 2.5 U/mg (phenyl α-glucoside as substrate).
Contaminants: α-amylase < 0.001%; amyloglucosidase < 0.01%.
Stable at 4°C for > 4 years.

 

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1:3,1:4-β-D-低聚糖的纤维素(B) 1,3:1,4 BETA-Glucotriose (B) 50mg 货号:O-BGTRIB Megazyme中文站

1:3,1:4-β-D-低聚糖的纤维素(B)

英文名:1,3:1,4 BETA-Glucotriose (B) 50mg

货号:O-BGTRIB

规格:50 mg

CAS: 32581-36-5
Molecular Formula: C18H32O16
Molecular Weight: 504.4
Purity: > 95%

High purity 1,3:1,4-β-Glucotriose (B) for use in research, biochemical enzyme assays and in vitro diagnostic analysis.

Trisaccharide produced on hydrolysis of 1:3,1:4-β-D-glucan by lichenase. Glc1-4Glc1-3Glc

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纤维素酶[1,4-D-葡聚糖内切酶[芽孢杆菌] Cellulase (endo-1,4-β-D-glucanase) (Bacillus amyloliquefaciens) 货号:E-CELBA Megazyme中文站

纤维素酶[1,4-D-葡聚糖内切酶[芽孢杆菌]

英文名:Cellulase (endo-1,4-β-D-glucanase) (Bacillus amyloliquefaciens)

货号:E-CELBA

规格:3500 Units at 40°C;

High purity recombinant Cellulase (endo-1,4-β-D-glucanase) (Bacillus amyloliquefaciens) for use in research, biochemical enzyme assays and in vitro diagnostic analysis.

EC 3.2.1.4 
CAZy Family: GH5

Recombinant. From Bacillus amyloliquefaciens. 
In 3.2 M ammonium sulphate.

Specific activity: ~ 80 U/mg (40oC, pH 6.0 on CM-cellulose 4M); ~ 160 U/mg (60oC, pH 6.0 on CM-cellulose 4M).

Stability: > 2 years at 4oC.

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昆布多糖酶/地衣多糖酶检测片剂 1,3-Beta-Glucazyme 200 Tabs 货号:T-PAZ-200T Megazyme中文站

昆布多糖酶/地衣多糖酶检测片剂

英文名:1,3-Beta-Glucazyme 200 Tabs

货号:T-PAZ-200T

规格:200 Tablets

High purity dyed and crosslinked 1,3-beta-Glucazyme tablets for the measurement of enzyme activity, for research, biochemical enzyme assays and in vitro diagnostic analysis.

For the assay of endo-1,3-ß-D-glucanase (laminarinase). Containing AZCL-Pachyman; a 1,3-ß-D-glucan.

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4-硝基苯基-β-D-木糖 4-Nitrophenyl-β-D-xylopyranoside 货号:O-PNPX Megazyme中文站

4-硝基苯基-β-D-木糖

英文名:4-Nitrophenyl-β-D-xylopyranoside

货号:O-PNPX

规格:1 gram

Synonyms: p-Nitrophenyl-β-D-xylopyranoside,
                   pNP-β-D-xylopyranoside
CAS: 2001-96-9
Molecular Formula: C11H13NO
7
Molecular Weight: 271.22
Purity: > 98%

High purity 4-Nitrophenyl-β-D-xylopyranoside for use in research, biochemical enzyme assays and in vitro diagnostic analysis. This is a colourimetric substrate for the measurement of β-xylosidase activity.

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1,3-b-D葡聚糖内切酶[木霉菌] endo-1,3-β-D-Glucanase (Trichoderma sp.) 货号:E-LAMSE Megazyme中文站

1,3-b-D葡聚糖内切酶[木霉菌]

英文名:endo-1,3-β-D-Glucanase (Trichoderma sp.)

货号:E-LAMSE

规格:100 Units

High purity endo-1,3-beta-Glucanase (Trichoderma sp.) for use in research, biochemical enzyme assays and in vitrodiagnostic analysis.

EC 3.2.1.39

From Trichoderma sp. Highly purified. 
In 3.2 M ammonium sulphate.

Specific Activity: ~ 15 U/mg (40oC, pH 4.5, CM-Curdlan as substrate).

Stable at 4oC for > 4 years.

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转化酶 呋喃果糖苷酶(酵母) Invertase (fructofuranosidase) (yeast) 货号:E-INVRT Megazyme中文站

转化酶 呋喃果糖苷酶(酵母)

英文名:Invertase (fructofuranosidase) (yeast)

货号:E-INVRT

规格:100 mL; 200000 Units. 2000 U/mL

High purity Invertase (beta-Fructofuranosidase) (liquid) for use in research, biochemical enzyme assays and in vitrodiagnostic analysis.

EC 3.2.1.26

From yeast. Chromatographically purified. 
In 50% glycerol.

Specific activity: 300 U/mg protein (40oC, pH 4.5, 1% sucrose). 2,000 U/ml. 

Stable at 4oC for > 4 years.

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Amresco 刚果红 573-58-0

  • 产品名称:提供Amresco的刚果红
  • 产品货号:0379
  • 规格:50G
  • 品牌商标:Amresco
产品名称:Amresco的刚果红

产品说明:A pH indicator (Blue to Red; range 3.0 – 5.0). A cytoplasmic stain for tissues fixed in Bouin’s. Also a specific stain for amyloid.

Grade:CERTIFIABLE GRADE

CAS Number:573-58-0

Synonym(s):None

Molecular Weight:696.67

Molecular Formula:C32H22N6O6S2Na2

Storage Condition:ROOM TEMPERATURE

Absorbance Maximum (nm)    497 – 500

Dye Content (%)    75.0

P-15/P+15    0.99 – 1.04

Alpha葡[萄]糖苷酶[嗜热脂肪芽孢杆菌] α-Glucosidase (Bacillus stearothermophilus) 货号:E-TSAGL Megazyme中文站

Alpha葡[萄]糖苷酶[嗜热脂肪芽孢杆菌]

英文名:α-Glucosidase (Bacillus stearothermophilus)

货号:E-TSAGL

规格:1500 Units

High purity alpha-Glucosidase (B. stearothermophilus) for use in research, biochemical enzyme assays and in vitrodiagnostic analysis.

EC 3.2.1.20 
CAZy Family: GH13

From B. stearothermophilus. 
In 3.2 M ammonium sulphate.

Specific activity: > 80 U/mg (40oC, pH 6.5, p-nitrophenyl α-D-glucoside).

Stable at 4oC for > 4 years.

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Beta葡聚糖[大麦;中黏度] Beta-Glucan (Barley;Med Viscosity) 5g 货号:P-BGBM Megazyme中文站

Beta葡聚糖[大麦;中黏度]

英文名:Beta-Glucan (Barley;Med Viscosity) 5g

货号:P-BGBM

规格:5 grams

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 1. Which barley beta-glucan do you recommend for the glucanase assay? There are three kinds of barley beta-glucan availabale from Megazyme – high viscosity, medium viscosity and low viscosity.

For glucanase assay, we recommend the medium viscosity beta-glucan.  We now offer low, medium and high viscosity wheat arabinoxylans, and we think that the low viscosity material will be best (easiest) to use in the reducing-sugar assay.

2. Both substrates; barley beta-glucan and wheat arabinoxylan, are standardised to a specific viscosity, e.g. 23-24 cSt. Are the substrates adjusted to give this viscosity?

The substrates are enzymically treated to yield the required viscosity (20 ~ 30 cSt). Modification of the viscosity of beta-glucan is required for IOB viscometric malt beta-glucanase test (which works well).

3. I would like to vacuum dry the standards instead of measuring the moisture content. I wish to dry them at a temperature lower than used in the preparation in Megazyme. Would you please give me some suggestions?

We suggest that you dry the β-glucan powders further in a vacuum oven at about 50˚C.  This will lower the moisture content to approximately 1-2%.

4. I understand a specific polymer can be used for the assay of malt β-glucanase and celluloses. I would very much like to know which polymer this β-glucan is?

The polymer you require is barley beta-glucan (medium viscosity).  The beta-glucan that we supply is pure 1,3:1,4-beta-D-glucan.  Barley β-glucan is also susceptible to hydrolysis by cellulase.

5. Although not specified on the beta-glucan data sheet, is the ratio of 1-3 to 1-4 bonds measured? If so, what is the ratio and would you expect it to remain standardised over a number of different batches?

The content of 1,3 bonds in barley beta-glucan is about 32% (from literature).  We would not expect this to change much (if at all) over different batches.

6. We have measured the molecular weight of beta-glucan originating from barley ordered from your company. Can you please tell us which method have you used for measuring molecular weight?

The MW’s were determined by Multiangle laser light scattering technique.

7. I have purchased barley beta-glucan (lot 30108) and carob galactomannan low viscosity (lot 30702) and would like to know what else there might be in these substrates.

Barley beta-glucan lot 30108 would contain about 3-4% arabinoxylan (this was produced in 1993).  Material supplied post 1995 contains < 0.5% arabinoxylan.  Carob galactomannan is quite pure (> 96%).

8. Low, Medium, High Viscosity β-Glucans, are they naturally occurring at these MW’s or are the MW fractions obtained by some other process?

The high molecular weight beta-glucan is the naturally occurring; this is enzymically modified to give the other viscosities.