标签归档：fluorescein

Biotin-4-fluorescein（生物素-4-荧光素） 货号: B5041 规格: 10 mg

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Biotin-4-fluorescein（生物素-4-荧光素）

产品货号: B5041

产品规格: 10 mg

目录价（元）:1100

大包装询价


产品概述：
产品参数
外观：可溶于 DMSO 或 pH>7 的 buffer 的黄色固体
Ex/Em : 494/523 nm
分子式：C33H32N4O8S
分子量：644.7

储存条件
-20℃避光保存，有效期见外包装。

产品介绍
Biotin-4-fluorescein 是一种荧光标记的生物素衍生物，生物素与亲和素之间高亲合力的牢固结合以及多级放大效应，使得该产品能够准确定量生物样品中亲和素与链霉亲和素。

注意事项
1. 荧光染料均存在淬灭问题，请尽量注意避光，以减缓荧光淬灭。
2. 为了您的安全和健康，请穿实验服并戴一次性手套操作。
说明书：

Biotin-4-fluorescein（生物素-4-荧光素） 货号: B5041 规格: 10 mg UE-B5041    
使用本产品的文献：

参考文献
1.Application of biotin-4-fluorescein in homogeneous fluorescence assays for avidin, streptavidin, and biotin or biotin derivatives
应用方向：Biotin-4-fluorescein在亲和素、链霉亲和素、生物素及生物素衍生物测定中的应用

2.Accurate measurement of avidin and streptavidin in crude biofluids with a new, optimized biotin-fluorescein conjugate
应用方向：亲和素、链霉亲和素的测定

Fluorescein-5-maleimide（荧光素-5-马来酰亚胺） 货号: F5004S/F5004L 规格: 5 mg/25 mg

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Fluorescein-5-maleimide（荧光素-5-马来酰亚胺）

产品货号: F5004S/F5004L

产品规格: 5 mg/25 mg

目录价（元）:450/1800

大包装询价


产品概述：
产品参数
外观：可溶于 DMF 的黄色固体
Ex/Em：492/515 nm (pH 9)
CAS 号：75350-46-8
分子式：C24H13NO7
分子量：427

储存条件
-20℃避光干燥保存，有效期见外包装。

产品介绍
荧光素-5-马来酰亚胺是应用最广泛的绿色荧光巯基反应染料。该反应需要非常温和的条件，同时反应具有高度的特异性。

注意事项
1. 荧光染料均存在淬灭问题，请尽量注意避光，以减缓荧光淬灭。
2. 为了您的安全和健康，请穿实验服并戴一次性手套操作。
说明书：

Fluorescein-5-maleimide（荧光素-5-马来酰亚胺） 货号: F5004S/F5004L 规格: 5 mg/25 mg UE-F5004S/F5004L    

Tetrazine PEG Fluorescein, Tetrazine-PEG-FITC Cat. No. PG2-FCTZ-5k 5000 Da 5 mg修饰性聚乙二醇

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Tetrazine PEG Fluorescein, Tetrazine-PEG-FITC

Cat. No. PG2-FCTZ-5k
Specification 5000 Da
Unit Size 5 mg
Price $385.00

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Tetrazine PEG Derivatives

Description:

Tetrazine PEG derivatives are used to react with TCO (transcyclooctene) groups. The reaction of tetrazine and TCO is a bioorthogaonal reaction that enables the conjugation of two molecules in aqueous solution fast and efficiently. Tetrazine PEG derivatives have excellent water solubility, possess fast kinetics and stability in aqueous buffer. They are one of the best pegylation reagents to modify proteins, peptides, antibodies, biopolymers and particles via copper free Click Chemistry reaction.

Product Specifications:

  • Appearance: Yellow to orange solid;
  • Solubility: Soluble in water, ethanol, DMSO, etc.;
  • Reactivity: Tetrazine reacts with TCO.

Storage:

  • Store at -20 0C; Desiccate; Avoid frequent thaw and freeze.
Documents
  • SDS
  • DataSheet

Tags: tetrazine PEG,

Proteinase K, Fluorescein/FITC labeled Cat. No. PK1-FL-1 2 mg修饰性聚乙二醇

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Proteinase K, Fluorescein/FITC labeled

Cat. No. PK1-FL-1
Specification
Unit Size 2 mg
Price $385.00

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Proteinase K, Fluorescein Labeled

Synonym: Proteinase K FITC, FITC-Proteinase K, Proteinase K-FAM.

Similar products: Alexa Fluor 488 Proteinase K, SF488 Proteinase K.

Product Description:

Fluorescein labeled Proteinase K is one of Nanocs’ fluorescent Proteinase K conjugates. Proteinase K is a highly reactive nonspecific serine protease that is capable of inactivating RNases and DNases and is used in the isolation or preparation of high molecular weight nucleic acids. Proteinase K is also useful for helping to characterize enzymes, due to its cleavage specificity. Proteinase K is stable in a wide variety of detergents and buffer salts and at various temperatures and pH. The isoelectric point of proteinase K is 8.9. Nanocs provides a number of fluorescent labeled Proteinase K products that span from UV region to near IR. These fluorescent Proteinase K conjugates can be used for enzyme studies, bioassay development and many other biomedical research. Nanocs Fluorescein labeled Proteinase K, FITC Proteinase K is a green fluorescent Proteinase K conjugate that has excitation/emission wavelength at 490/520 nm. This fluorescein Proteinase K can be easily detected by fluorescent instruments in FITC channel. All our fluorescent Proteinase K conjugates were purified by size chromatography to remove non-conjugated molecules and ensure adequate applications both in-vitro and in-vivo.

Product Specifications:

  • 2~5 fluorescein dyes on each Proteinase K molecule.
  • Molecular weight: ~28.5 kD
  • Proteinase K conjugates provided either in water solution or dried powder;

Storage Conditions:

  • Store at 4 0C. Protect from light.

DBCO-PEG2000-fluorescein Cat. No. PG2-DBFC-2k 10 mg修饰性聚乙二醇

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DBCO-PEG2000-fluorescein

Cat. No. PG2-DBFC-2k
Specification
Unit Size 10 mg
Price $385.00

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Description:

DBCO (Dibenzocyclooctyne) is a cycloalkyne that can reacts with azides via strain-promoted 1,3-dipolar cycloaddition in aqueous solution, a bioorthogonal reaction also termed Cu-free click reaction.  This reaction has excellent selectivity and biocompatibility, such that the complimentary reagents can form covalent bonds with richly functionalized biological systems. The Cu-free click reaction has been a powerful tool in catalyst-free bioconjugation. DBCO reagents posses fast kinetcs and stability in aqueous buffer and they can be used to label azide-modified biomolecules with high specificity and reactivity. 

Physical Properties:

  • Yellow/pale-yellow solid or semi-solid;
  • Soluble in DMSO or DMF;

Storage Conditions:

  • Store at -20 0C, desiccate. Avoid frequent thaw and frozen.

Copper-free Click Reaction Procedures:

Prepare the azide-containing sample in reaction buffer. Add DBCO conjugate to azide containing sample. Recommendation: Add 1 mole equivalent of limiting reagent to 1.5-3.0 mole equivalents of highest abundance reagent. Incubate the reaction at room temperature for 2-4 hours or 2-12 hours at 4 degree celcius. The reaction is now ready for purification.

Fluorescein PEG, mPEG-FITC Cat. No. PG1-FC-5k 5000 Da 50 mg修饰性聚乙二醇

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Fluorescein PEG, mPEG-FITC

Cat. No. PG1-FC-5k Fluorescein PEG, mPEG-FITC Cat. No. PG1-FC-5k 5000 Da 50 mg
Specification 5000 Da
Unit Size 50 mg
Price $385.00

Qty Add to Cart

Description:

Fluorescein labeled polyethylene glycol is a fluorescent PEG derivative which has a maximum absorption at 495 nm and emission around 515~520 nm. FITC group can be easily traced from its yellow color and green fluorescence. Additional functionality allows these fluorescent PEG derivatives to be easily conjugated to other molecule or material surfaces.

Physical Properties:

  • Organge/yellow solid or viscous liquid depends on molecule weight;
  • Soluble in regular aqeous solution as well as most organic solvents;

Storage Conditions:

  • Store at -20 0C, dessiccated Protect from light. Avoid frequent thaw and freeze.
Documents
  • SDS
  • DataSheet

Fluorescein PEG, mPEG-FITC Cat. No. PG1-FC-2k 2000 Da 50 mg修饰性聚乙二醇

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上海金畔生物科技有限公司提供各种分子量和基团修饰性聚乙二醇定制服务。

Fluorescein PEG, mPEG-FITC

Cat. No. PG1-FC-2k Fluorescein PEG, mPEG-FITC Cat. No. PG1-FC-2k 2000 Da 50 mg
Specification 2000 Da
Unit Size 50 mg
Price $385.00

Qty Add to Cart

Description:

Fluorescein labeled polyethylene glycol is a fluorescent PEG derivative which has a maximum absorption at 495 nm and emission around 515~520 nm. FITC group can be easily traced from its yellow color and green fluorescence. Additional functionality allows these fluorescent PEG derivatives to be easily conjugated to other molecule or material surfaces.

Physical Properties:

  • Organge/yellow solid or viscous liquid depends on molecule weight;
  • Soluble in regular aqeous solution as well as most organic solvents;

Storage Conditions:

  • Store at -20 0C, dessiccated Protect from light. Avoid frequent thaw and freeze.
Documents
  • SDS
  • DataSheet

Fluorescein PEG, mPEG-FITC Cat. No. PG1-FC-1k 1000 Da 25 mg修饰性聚乙二醇

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上海金畔生物科技有限公司提供各种分子量和基团修饰性聚乙二醇定制服务。

Fluorescein PEG, mPEG-FITC

Cat. No. PG1-FC-1k Fluorescein PEG, mPEG-FITC Cat. No. PG1-FC-1k 1000 Da 25 mg
Specification 1000 Da
Unit Size 25 mg
Price $385.00

Qty Add to Cart

Description:

Fluorescein labeled polyethylene glycol is a fluorescent PEG derivative which has a maximum absorption at 495 nm and emission around 515~520 nm. FITC group can be easily traced from its yellow color and green fluorescence. Additional functionality allows these fluorescent PEG derivatives to be easily conjugated to other molecule or material surfaces.

Physical Properties:

  • Organge/yellow solid or viscous liquid depends on molecule weight;
  • Soluble in regular aqeous solution as well as most organic solvents;

Storage Conditions:

  • Store at -20 0C, dessiccated Protect from light. Avoid frequent thaw and freeze.
Documents
  • SDS
  • DataSheet

Fluorescein PEG, mPEG-FITC Cat. No. PG1-FC-10k 10000 Da 50 mg修饰性聚乙二醇

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上海金畔生物科技有限公司提供各种分子量和基团修饰性聚乙二醇定制服务。

Fluorescein PEG, mPEG-FITC

Cat. No. PG1-FC-10k Fluorescein PEG, mPEG-FITC Cat. No. PG1-FC-10k 10000 Da 50 mg
Specification 10000 Da
Unit Size 50 mg
Price $385.00

Qty Add to Cart

Description:

Fluorescein labeled polyethylene glycol is a fluorescent PEG derivative which has a maximum absorption at 495 nm and emission around 515~520 nm. FITC group can be easily traced from its yellow color and green fluorescence. Additional functionality allows these fluorescent PEG derivatives to be easily conjugated to other molecule or material surfaces.

Physical Properties:

  • Organge/yellow solid or viscous liquid depends on molecule weight;
  • Soluble in regular aqeous solution as well as most organic solvents;

Storage Conditions:

  • Store at -20 0C, dessiccated Protect from light. Avoid frequent thaw and freeze.
Documents
  • SDS
  • DataSheet

Fluorescein PEG, mPEG-FITC Cat. No. PG1-FC-20k 20000 Da 50 mg修饰性聚乙二醇

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上海金畔生物科技有限公司提供各种分子量和基团修饰性聚乙二醇定制服务。

Fluorescein PEG, mPEG-FITC

Cat. No. PG1-FC-20k Fluorescein PEG, mPEG-FITC Cat. No. PG1-FC-20k 20000 Da 50 mg
Specification 20000 Da
Unit Size 50 mg
Price $385.00

Qty Add to Cart

Description:

Fluorescein labeled polyethylene glycol is a fluorescent PEG derivative which has a maximum absorption at 495 nm and emission around 515~520 nm. FITC group can be easily traced from its yellow color and green fluorescence. Additional functionality allows these fluorescent PEG derivatives to be easily conjugated to other molecule or material surfaces.

Physical Properties:

  • Organge/yellow solid or viscous liquid depends on molecule weight;
  • Soluble in regular aqeous solution as well as most organic solvents;

Storage Conditions:

  • Store at -20 0C, dessiccated Protect from light. Avoid frequent thaw and freeze.
Documents
  • SDS
  • DataSheet

Chitosan, fluorescein labeled, 180 kDa Cat. No. CS180k-FC-1 1 mg修饰性聚乙二醇

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Chitosan, fluorescein labeled, 180 kDa

Cat. No. CS180k-FC-1
Specification
Unit Size 1 mg
Price $385.00

Qty Add to Cart

Description:

Nanocs provides a variety of chemically functionalized and bioconjugated chitosan polysaccharide with different functionality. These functional chitosan products were purified by size chromatography to remove non-conjugated molecules and ensure adequate applications both in-vitro and in-vivo.

Specifications:

  • 10~50 functional groups on each chitosan molecule.
  • Chitosan conjugates provided either in water solution and dried powder;

Storage Conditions:

  • Store4 0C, dessiccated Protect from light.

Fluorescein PEG, mPEG-FITC Cat. No. PG1-FC-30k 30000 Da 50 mg修饰性聚乙二醇

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上海金畔生物科技有限公司提供各种分子量和基团修饰性聚乙二醇定制服务。

Fluorescein PEG, mPEG-FITC

Cat. No. PG1-FC-30k Fluorescein PEG, mPEG-FITC Cat. No. PG1-FC-30k 30000 Da 50 mg
Specification 30000 Da
Unit Size 50 mg
Price $385.00

Qty Add to Cart

Description:

Fluorescein labeled polyethylene glycol is a fluorescent PEG derivative which has a maximum absorption at 495 nm and emission around 515~520 nm. FITC group can be easily traced from its yellow color and green fluorescence. Additional functionality allows these fluorescent PEG derivatives to be easily conjugated to other molecule or material surfaces.

Physical Properties:

  • Organge/yellow solid or viscous liquid depends on molecule weight;
  • Soluble in regular aqeous solution as well as most organic solvents;

Storage Conditions:

  • Store at -20 0C, dessiccated Protect from light. Avoid frequent thaw and freeze.
Documents
  • SDS
  • DataSheet

Chitosan, fluorescein labeled, 120 kDa Cat. No. CS120k-FC-1 1 mg修饰性聚乙二醇

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上海金畔生物科技有限公司提供各种分子量和基团修饰性聚乙二醇定制服务。

Chitosan, fluorescein labeled, 120 kDa

Cat. No. CS120k-FC-1
Specification
Unit Size 1 mg
Price $385.00

Qty Add to Cart

Description:

Nanocs provides a variety of chemically functionalized and bioconjugated chitosan polysaccharide with different functionality. These functional chitosan products were purified by size chromatography to remove non-conjugated molecules and ensure adequate applications both in-vitro and in-vivo.

Specifications:

  • 10~50 functional groups on each chitosan molecule.
  • Chitosan conjugates provided either in water solution and dried powder;

Storage Conditions:

  • Store4 0C, dessiccated Protect from light.

Fluorescein PEG, mPEG-FITC Cat. No. PG1-FC-40k 40000 Da 50 mg修饰性聚乙二醇

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上海金畔生物科技有限公司提供各种分子量和基团修饰性聚乙二醇定制服务。

Fluorescein PEG, mPEG-FITC

Cat. No. PG1-FC-40k Fluorescein PEG, mPEG-FITC Cat. No. PG1-FC-40k 40000 Da 50 mg
Specification 40000 Da
Unit Size 50 mg
Price $385.00

Qty Add to Cart

Description:

Fluorescein labeled polyethylene glycol is a fluorescent PEG derivative which has a maximum absorption at 495 nm and emission around 515~520 nm. FITC group can be easily traced from its yellow color and green fluorescence. Additional functionality allows these fluorescent PEG derivatives to be easily conjugated to other molecule or material surfaces.

Physical Properties:

  • Organge/yellow solid or viscous liquid depends on molecule weight;
  • Soluble in regular aqeous solution as well as most organic solvents;

Storage Conditions:

  • Store at -20 0C, dessiccated Protect from light. Avoid frequent thaw and freeze.
Documents
  • SDS
  • DataSheet

Chitosan, fluorescein labeled, 90 kDa Cat. No. CS90k-FC-1 1 mg修饰性聚乙二醇

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上海金畔生物科技有限公司提供各种分子量和基团修饰性聚乙二醇定制服务。

Chitosan, fluorescein labeled, 90 kDa

Cat. No. CS90k-FC-1
Specification
Unit Size 1 mg
Price $385.00

Qty Add to Cart

Description:

Nanocs provides a variety of chemically functionalized and bioconjugated chitosan polysaccharide with different functionality. These functional chitosan products were purified by size chromatography to remove non-conjugated molecules and ensure adequate applications both in-vitro and in-vivo.

Specifications:

  • 10~50 functional groups on each chitosan molecule.
  • Chitosan conjugates provided either in water solution and dried powder;

Storage Conditions:

  • Store4 0C, dessiccated Protect from light.

Fluorescein PEG, mPEG-FITC Cat. No. PG1-FC-350 350 Da 50 mg修饰性聚乙二醇

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上海金畔生物科技有限公司提供各种分子量和基团修饰性聚乙二醇定制服务。

Fluorescein PEG, mPEG-FITC

Cat. No. PG1-FC-350 Fluorescein PEG, mPEG-FITC Cat. No. PG1-FC-350 350 Da 50 mg
Specification 350 Da
Unit Size 50 mg
Price $425.00

Qty Add to Cart

Description:

Fluorescein labeled polyethylene glycol is a fluorescent PEG derivative which has a maximum absorption at 495 nm and emission around 515~520 nm. FITC group can be easily traced from its yellow color and green fluorescence. Additional functionality allows these fluorescent PEG derivatives to be easily conjugated to other molecule or material surfaces.

Physical Properties:

  • Organge/yellow solid or viscous liquid depends on molecule weight;
  • Soluble in regular aqeous solution as well as most organic solvents;

Storage Conditions:

  • Store at -20 0C, dessiccated Protect from light. Avoid frequent thaw and freeze.
Documents
  • SDS
  • DataSheet

Fluorescein PEG, mPEG-FITC Cat. No. PG1-FC-550 550 Da 50 mg修饰性聚乙二醇

发表于由

上海金畔生物科技有限公司提供各种分子量和基团修饰性聚乙二醇定制服务。

Fluorescein PEG, mPEG-FITC

Cat. No. PG1-FC-550 Fluorescein PEG, mPEG-FITC Cat. No. PG1-FC-550 550 Da 50 mg
Specification 550 Da
Unit Size 50 mg
Price $425.00

Qty Add to Cart

Description:

Fluorescein labeled polyethylene glycol is a fluorescent PEG derivative which has a maximum absorption at 495 nm and emission around 515~520 nm. FITC group can be easily traced from its yellow color and green fluorescence. Additional functionality allows these fluorescent PEG derivatives to be easily conjugated to other molecule or material surfaces.

Physical Properties:

  • Organge/yellow solid or viscous liquid depends on molecule weight;
  • Soluble in regular aqeous solution as well as most organic solvents;

Storage Conditions:

  • Store at -20 0C, dessiccated Protect from light. Avoid frequent thaw and freeze.
Documents
  • SDS
  • DataSheet

Fluorescein PEG, mPEG-FITC Cat. No. PG1-FC-750 750 Da 50 mg修饰性聚乙二醇

发表于由

上海金畔生物科技有限公司提供各种分子量和基团修饰性聚乙二醇定制服务。

Fluorescein PEG, mPEG-FITC

Cat. No. PG1-FC-750 Fluorescein PEG, mPEG-FITC Cat. No. PG1-FC-750 750 Da 50 mg
Specification 750 Da
Unit Size 50 mg
Price $425.00

Qty Add to Cart

Description:

Fluorescein labeled polyethylene glycol is a fluorescent PEG derivative which has a maximum absorption at 495 nm and emission around 515~520 nm. FITC group can be easily traced from its yellow color and green fluorescence. Additional functionality allows these fluorescent PEG derivatives to be easily conjugated to other molecule or material surfaces.

Physical Properties:

  • Organge/yellow solid or viscous liquid depends on molecule weight;
  • Soluble in regular aqeous solution as well as most organic solvents;

Storage Conditions:

  • Store at -20 0C, dessiccated Protect from light. Avoid frequent thaw and freeze.
Documents
  • SDS
  • DataSheet

Fluorescein labeled polystyrene beads, amine function Cat. No. PS50-AMFC-1 50 nm 0.5 mL修饰性聚乙二醇

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上海金畔生物科技有限公司提供各种分子量和基团修饰性聚乙二醇定制服务。

Fluorescein labeled polystyrene beads, amine function

Cat. No. PS50-AMFC-1
Specification 50 nm
Unit Size 0.5 mL
Price $385.00

Qty Add to Cart

Description:

Polystyrene Particles from Nanocs have narrow size distribution yet with multiple size selection from 20 nm to 10 microns. These particles are suspended in 1% aqeuous solution. Standard deviation of these particles is in the range of 10% of listed size parameter. These particles have wide applications in diagnostic reagents and bioassay development. They can be further modified with different surface coatings and functional groups. Nanocs surface modified polystyrene particles provide more choices for in-vitro or in-vivo applications of those nanoparticles. Customer conjugation and modification is available upon request.

Physical Properties:

  • 1% suspension in aqueous solution, other concentration available upon request;

Storage Conditions:

  • Store at 4 0C.

Fluorescein labeled polystyrene beads, amine function Cat. No. PS100-AMFC-1 100 nm 0.5 mL修饰性聚乙二醇

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上海金畔生物科技有限公司提供各种分子量和基团修饰性聚乙二醇定制服务。

Fluorescein labeled polystyrene beads, amine function

Cat. No. PS100-AMFC-1
Specification 100 nm
Unit Size 0.5 mL
Price $385.00

Qty Add to Cart

Description:

Polystyrene Particles from Nanocs have narrow size distribution yet with multiple size selection from 20 nm to 10 microns. These particles are suspended in 1% aqeuous solution. Standard deviation of these particles is in the range of 10% of listed size parameter. These particles have wide applications in diagnostic reagents and bioassay development. They can be further modified with different surface coatings and functional groups. Nanocs surface modified polystyrene particles provide more choices for in-vitro or in-vivo applications of those nanoparticles. Customer conjugation and modification is available upon request.

Physical Properties:

  • 1% suspension in aqueous solution, other concentration available upon request;

Storage Conditions:

  • Store at 4 0C.