英文名：4-Methylumbelliferyl-Beta-Xylobioside
货号：O-4MUX2-10MG
规格：10mg
市场价： 4100元
CAS: 158962-91-5
Molecular Formula: C20H24O11
Molecular Weight: 440.4
Purity: > 98%
High purity 4-Methylumbelliferyl-β-xylobioside for use in research, biochemical enzyme assays and in vitro diagnostic analysis.
A fluorogenic substrate for assay of xylanase and xlyosidase activity.
Data booklets for each pack size are located in the Technical Resources tab.
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英文名：4-Methylumbelliferyl-Beta-Xylobioside
货号：O-4MUX2-5MG
规格：5mg
市场价： 2400元
CAS: 158962-91-5
Molecular Formula: C20H24O11
Molecular Weight: 440.4
Purity: > 98%
High purity 4-Methylumbelliferyl-β-xylobioside for use in research, biochemical enzyme assays and in vitro diagnostic analysis.
A fluorogenic substrate for assay of xylanase and xlyosidase activity.
Data booklets for each pack size are located in the Technical Resources tab.
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英文名：Beta-Glucan (Barley;High Viscosity) 5g
货号：P-BGBH
规格：5 grams
市场价： 5512元
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英文名：Beta-Glucan (Barley;Low Viscosity) 5g
货号：P-BGBL
规格：5 grams
市场价： 4982元
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英文名：Beta-Glucan (Barley;Med Viscosity) 5g
货号：P-BGBM
规格：5 grams
市场价： 5194元
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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.
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).
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%.
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.
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.
The MW’s were determined by Multiangle laser light scattering technique.
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%).
The high molecular weight beta-glucan is the naturally occurring; this is enzymically modified to give the other viscosities.
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英文名：Beta-Glucan (Oat; High Viscosity) 5g
货号：P-BGOH
规格：5 grams
市场价： 5200元
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英文名：Beta-Glucan (Oat; Med Viscosity) 5g
货号：P-BGOM
规格：5 grams
市场价： 4982元
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英文名：Beta-Glucan (Yeast， Alkali Soluble) 2g
货号：P-BGYST
规格：2 grams
市场价： 3392元
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英文名：Beta-Limit Dextrin – 10g
货号：P-BLDX-10G
规格：10 grams
市场价： 2438元
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英文名：Beta-Limit Dextrin – 50g
货号：P-BLDX-50G
规格：50 grams
市场价： 8798元
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英文名：Beta-Glucazyme – 1000 Tablets
货号：T-BGZ-1000T
规格：1000 Tablets
市场价： 15370元
High purity dyed and crosslinked beta-Glucazyme tablets for the measurement of enzyme activity, for research, biochemical enzyme assays and in vitro diagnostic analysis.
RACI Standard Method. For the assay of malt ß-glucanase and endo-cellulase.Containing AZCL-Barley ß-glucan.
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英文名：Beta-Glucazyme (100mg) 1000 Tablets
货号：T-BGZ-200T
规格：200 Tablets
市场价： 4558元
High purity dyed and crosslinked beta-Glucazyme tablets for the measurement of enzyme activity, for research, biochemical enzyme assays and in vitro diagnostic analysis.
RACI Standard Method. For the assay of malt ß-glucanase and endo-cellulase. Containing AZCL-Barley ß-glucan.
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英文名：Beta-Glucazyme – 1000 Tablets
货号：T-BGZ100MG
规格：1000 tablets
市场价： 15728元
High purity dyed and crosslinked beta-Glucazyme tablets for the measurement of enzyme activity, for research, biochemical enzyme assays and in vitro diagnostic analysis.
RACI Standard Method. For the assay of malt ß-glucanase and endo-cellulase.Containing AZCL-Barley ß-glucan.
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英文名：1，3-Beta-Glucazyme 200 Tabs
货号：T-PAZ-200T
规格：200 Tablets
市场价： 4600元
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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英文名：4-Methylumbelliferyl-β-(1,3:1,4)-glucotrioside
货号：O-4MUBG3
规格：10 mg
市场价： 4900元
Synonyms: 4-Methylumbelliferyl β-D-glucopyranosyl-(1→4)-β-D-glucopyranosyl-(1→3)-β-D-glucopyranoside
CAS: 172364-09-9
Molecular Formula: C28H38O18
Molecular Weight: 662.6
Purity: > 90% (contains ~ 5% 4MU-α-anomer)
High purity 4-Methylumbelliferyl-β-(1,3:1,4)-glucotrioside for use in research, biochemical enzyme assays and in vitro diagnostic analysis. This is a fluorimetric substrate for the detection or measurement of lichenase or mixed linkage β-glucanase (endo-1,3:1,4-β-D-glucanase) activity. As this substrate can also be hydrolysed by exo-acting β-glucanase/β-glucosidase enzymes, it is recommended only for the assay of pure enzyme solutions. The data sheet for the analogous UV-based substrate, 2-Chloro-4-nitrophenyl-β-(1,3:1,4)-glucotrioside (cat. no. O-CNPBG3), describes general assay conditions although the substrate concentration can be significantly reduced for this fluorimetric version of the assay. Please note that a fluorimeter is required.
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英文名：2-Chloro-4-nitrophenyl-β-(1,3:1,4)-glucotrioside
货号：O-CNPBG3
规格：20 mg
市场价： 4900元
Synonyms: 2-Chloro-4-nitrophenyl β-D-glucopyranosyl-(1→4)-β-D-glucopyranosyl-(1→3)-β-D-glucopyranoside
CAS: N/A
Molecular Formula: C24H34ClNO18
Molecular Weight: 660.0
Purity: > 98%
High purity 2-Chloro-4-nitrophenyl-β-(1,3:1,4)-glucotrioside for use in research, biochemical enzyme assays and in vitro diagnostic analysis. This is a colourimetric substrate for the measurement of lichenase or mixed linkage β-glucanase (endo-1,3:1,4-β-D-glucanase) activity. As this substrate can also be hydrolysed by exo-acting β-glucanase/β-glucosidase enzymes, it is recommended only for the assay of pure enzyme solutions. The corresponding data sheet describes suitable assay conditions.
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英文名：2-Chloro-4-nitrophenyl-β-(1,3:1,4)-glucotetraoside
货号：O-CNPBG4
规格：20 mg
市场价： 4900元
Synonyms: 2-Chloro-4-nitrophenyl β-D-glucopyranosyl-(1→4)-β-D-glucopyranosyl-(1→4)-β-D-glucopyranosyl-(1→3)-β-D-glucopyranoside
CAS: N/A
Molecular Formula: C30H44ClNO23
Molecular Weight: 822.1
Purity: > 97%
High purity 2-Chloro-4-nitrophenyl-β-(1,3:1,4)-glucotetraoside for use in research, biochemical enzyme assays and in vitro diagnostic analysis. This is a colourimetric substrate for the measurement of lichenase or mixed linkage
β-glucanase (endo-1,3:1,4-β-D-glucanase) activity. As this substrate can also be hydrolysed by exo-acting β-glucanase/β-glucosidase enzymes, it is recommended only for the assay of pure lichenase solutions. The data sheet for the analogous trisaccharide substrate, 2-Chloro-4-nitrophenyl-β-(1,3:1,4)-glucotrioside (cat. no. O-CNPBG3), describes suitable assay conditions.
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Beta乳球蛋白是一种常见的致过敏食物。乳制品等经常由于某些原因而不慎残留在食品中。这些都可能导致食品中残留有Beta乳球蛋白成分而并未体现在标签上。婴儿对乳制品中的Beta乳球蛋白有过敏反应。因此，准确地检测食品中的Beta乳球蛋白残留就变得十分必要。
在样品高温处理后的特异性Beta乳球蛋白具有热稳定性，并作为试剂盒的Beta乳球蛋白指示剂。结果用ppm表示。
【简单介绍】
【详细说明】
上海金畔生物科技有限公司提供15-beta PGF2α ，欢迎访问官网了解更多产品信息和订购。
15-beta PGF2α
Synonym: 15-beta PGF2α; Prostaglandin F2α (15 beta epimer)
IUPAC/Chemical Name: (Z)-7-((1R,2R,3R,5S)-3,5-dihydroxy-2-((R,E)-3-hydroxyoct-1-en-1-yl)cyclopentyl)hept-5-enoic acid
InChi Key: PXGPLTODNUVGFL-CKXCCYAOSA-N
InChi Code: InChI=1S/C20H34O5/c1-2-3-6-9-15(21)12-13-17-16(18(22)14-19(17)23)10-7-4-5-8-11-20(24)25/h4,7,12-13,15-19,21-23H,2-3,5-6,8-11,14H2,1H3,(H,24,25)/b7-4-,13-12+/t15-,16-,17-,18+,19-/m1/s1
SMILES Code: O[C@@H]1C[C@H](O)[C@H](C/C=CCCCC(O)=O)[C@H]1/C=C/[C@H](O)CCCCC
Appearance: Solid powder
Purity: >98% (or refer to the Certificate of Analysis)
Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.
Storage Condition: Dry, dark and at 0 – 4 C for short term (days to weeks) or -20 C for long term (months to years).
Solubility: Soluble in DMSO
Shelf Life: >3 years if stored properly
Drug Formulation: This drug may be formulated in DMSO
Stock Solution Storage: 0 – 4 C for short term (days to weeks), or -20 C for long term (months).
HS Tariff Code: 2934.99.9001
15-beta PGF2α
MedKoo 是超高质量的实验室药物供应商。它于2009年由获得博士学位的Qingqi Chen博士创立。北京大学合成化学专业，并在约翰内斯-开普勒大学林茨（与 Heinz Falk 博士）、内华达里诺大学（与 David Lightner 博士）和不列颠哥伦比亚大学（与 David Dolphin 博士）接受博士后培训。