Methoxy PEG dithiol NHS Cat. No. PG1-SNS-5k 5000 Da 100 mg修饰性聚乙二醇

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。

Methoxy PEG dithiol NHS

Cat. No. PG1-SNS-5k Methoxy PEG dithiol NHS           Cat. No. PG1-SNS-5k     5000 Da    100 mg
Specification 5000 Da
Unit Size 100 mg
Price $385.00

Qty Add to Cart

Description:

Nanocs dithio NHS functionalized polyethylene glycol (PEG-S-S-NHS) is a reducing reagent cleavable and amine (-NH2) reactive PEG derivative that can be used to modify protein, peptide or any other material surfaces with their available amino groups. Dithiol-NHS esters react with primary amine groups at pH 7~8.5 to form stable amide bonds, meanwhile, disulfide bond can be cleaved by DTT, TCEP and other disulfide bond reducing reagents.

Physical Properties:

  • Off-white/white solid or viscous liquid depends on molecule weight;
  • Solubility: 10 mg/mL, clear in water, chloroform, DMSO.
  • Purity: >95%

Storage Conditions:

  • Store at -20 0C, desiccate. NHS PEG tends to hydrolyze from moisture. Avoid frequent thaw and freeze.
Documents
  • SDS
  • DataSheet

Methoxy PEG dithiol NHS Cat. No. PG1-SNS-2k 2000 Da 100 mg修饰性聚乙二醇

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。

Methoxy PEG dithiol NHS

Cat. No. PG1-SNS-2k Methoxy PEG dithiol NHS           Cat. No. PG1-SNS-2k     2000 Da    100 mg
Specification 2000 Da
Unit Size 100 mg
Price $385.00

Qty Add to Cart

Description:

Nanocs dithio NHS functionalized polyethylene glycol (PEG-S-S-NHS) is a reducing reagent cleavable and amine (-NH2) reactive PEG derivative that can be used to modify protein, peptide or any other material surfaces with their available amino groups. Dithiol-NHS esters react with primary amine groups at pH 7~8.5 to form stable amide bonds, meanwhile, disulfide bond can be cleaved by DTT, TCEP and other disulfide bond reducing reagents.

Physical Properties:

  • Off-white/white solid or viscous liquid depends on molecule weight;
  • Solubility: 10 mg/mL, clear in water, chloroform, DMSO.
  • Purity: >95%

Storage Conditions:

  • Store at -20 0C, desiccate. NHS PEG tends to hydrolyze from moisture. Avoid frequent thaw and freeze.
Documents
  • SDS
  • DataSheet

Methoxy PEG dithiol NHS Cat. No. PG1-SNS-10k 10000 Da 100 mg修饰性聚乙二醇

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。

Methoxy PEG dithiol NHS

Cat. No. PG1-SNS-10k Methoxy PEG dithiol NHS           Cat. No. PG1-SNS-10k     10000 Da    100 mg
Specification 10000 Da
Unit Size 100 mg
Price $385.00

Qty Add to Cart

Description:

Nanocs dithio NHS functionalized polyethylene glycol (PEG-S-S-NHS) is a reducing reagent cleavable and amine (-NH2) reactive PEG derivative that can be used to modify protein, peptide or any other material surfaces with their available amino groups. Dithiol-NHS esters react with primary amine groups at pH 7~8.5 to form stable amide bonds, meanwhile, disulfide bond can be cleaved by DTT, TCEP and other disulfide bond reducing reagents.

Physical Properties:

  • Off-white/white solid or viscous liquid depends on molecule weight;
  • Solubility: 10 mg/mL, clear in water, chloroform, DMSO.
  • Purity: >95%

Storage Conditions:

  • Store at -20 0C, desiccate. NHS PEG tends to hydrolyze from moisture. Avoid frequent thaw and freeze.
Documents
  • SDS
  • DataSheet

Methoxy PEG dithiol NHS Cat. No. PG1-SNS-20k 20000 Da 100 mg修饰性聚乙二醇

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。

Methoxy PEG dithiol NHS

Cat. No. PG1-SNS-20k Methoxy PEG dithiol NHS           Cat. No. PG1-SNS-20k     20000 Da    100 mg
Specification 20000 Da
Unit Size 100 mg
Price $385.00

Qty Add to Cart

Description:

Nanocs dithio NHS functionalized polyethylene glycol (PEG-S-S-NHS) is a reducing reagent cleavable and amine (-NH2) reactive PEG derivative that can be used to modify protein, peptide or any other material surfaces with their available amino groups. Dithiol-NHS esters react with primary amine groups at pH 7~8.5 to form stable amide bonds, meanwhile, disulfide bond can be cleaved by DTT, TCEP and other disulfide bond reducing reagents.

Physical Properties:

  • Off-white/white solid or viscous liquid depends on molecule weight;
  • Solubility: 10 mg/mL, clear in water, chloroform, DMSO.
  • Purity: >95%

Storage Conditions:

  • Store at -20 0C, desiccate. NHS PEG tends to hydrolyze from moisture. Avoid frequent thaw and freeze.
Documents
  • SDS
  • DataSheet

Methoxy PEG succinic acid NHS Cat. No. PG1-SSA-5k 5000 Da 1 g修饰性聚乙二醇

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。

Methoxy PEG succinic acid NHS

Cat. No. PG1-SSA-5k Methoxy PEG succinic acid NHS           Cat. No. PG1-SSA-5k     5000 Da    1 g
Specification 5000 Da
Unit Size 1 g
Price $325.00

Qty Add to Cart

Description:

N-hydroxylsuccinimide (NHS) functionalized polyethylene glycol (PEG-NHS) is an amino (-NH2) reactive PEG derivative that can be used to modify protein, peptide or any other surfaces with their available amino groups. NHS esters react with primary amine groups at pH 7~8.5 to form stable amide bonds.Compared to other PEG NHS ester derivatives, our succinimidyl carbonate (SC) functionalized mPEG-NHS offers superior reactivity and higher stability in aqueous solution. NHS esters react with deprotonated primary amines, therefore, the reaction requires neutral to basic pH values to proceed. Primary amines react with NHS esters by nucleophilic attack and NHS is released as a byproduct. Hydrolysis of the NHS-ester competes with the reaction in aqueous solution and increases with increasing pH.

Physical Properties:

  • Off-white/white 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, desiccate. NHS PEG tends to hydrolyze from moisture. Avoid frequent thaw and frozen.

Reaction Procedures:

Generally, a 10 to 50-fold molar excess of NHS PEG over the amount of amine-containing material results in sufficient conjugation.

Materials Required:

  • Conjugation buffer: Sodium bicarbonate 100 mM buffer, pH 8.5 or other amine-free buffer at pH 7-8.5.
  • PEG NHS stock solution: 100 mg in 1 mL conjugation buffer.
  • Washing solution: Distilled water or any aqueous buffer.

Reaction Steps:

Dissolve targeted materials in conjugation buffer. Estimate the concentration of primary amine groups on the targeted materials. Add NHS PEG stock solution to the targeted conjugation materials with the final concentration keep at least 10 mg/mL. 10~50 molar excess of PEG NHS needed for optimal conjugation; Allow mixture agitates at room temperature for 30~60 min at room temperature or 2 hours at 4 0C. Conjugates can be purified either by size exclusion chromatography or dialysis.

Documents
  • SDS
  • DataSheet

Methoxy PEG succinic acid NHS Cat. No. PG1-SSA-2k 2000 Da 1 g修饰性聚乙二醇

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。

Methoxy PEG succinic acid NHS

Cat. No. PG1-SSA-2k Methoxy PEG succinic acid NHS           Cat. No. PG1-SSA-2k     2000 Da    1 g
Specification 2000 Da
Unit Size 1 g
Price $325.00

Qty Add to Cart

Description:

N-hydroxylsuccinimide (NHS) functionalized polyethylene glycol (PEG-NHS) is an amino (-NH2) reactive PEG derivative that can be used to modify protein, peptide or any other surfaces with their available amino groups. NHS esters react with primary amine groups at pH 7~8.5 to form stable amide bonds.Compared to other PEG NHS ester derivatives, our succinimidyl carbonate (SC) functionalized mPEG-NHS offers superior reactivity and higher stability in aqueous solution. NHS esters react with deprotonated primary amines, therefore, the reaction requires neutral to basic pH values to proceed. Primary amines react with NHS esters by nucleophilic attack and NHS is released as a byproduct. Hydrolysis of the NHS-ester competes with the reaction in aqueous solution and increases with increasing pH.

Physical Properties:

  • Off-white/white 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, desiccate. NHS PEG tends to hydrolyze from moisture. Avoid frequent thaw and frozen.

Reaction Procedures:

Generally, a 10 to 50-fold molar excess of NHS PEG over the amount of amine-containing material results in sufficient conjugation.

Materials Required:

  • Conjugation buffer: Sodium bicarbonate 100 mM buffer, pH 8.5 or other amine-free buffer at pH 7-8.5.
  • PEG NHS stock solution: 100 mg in 1 mL conjugation buffer.
  • Washing solution: Distilled water or any aqueous buffer.

Reaction Steps:

Dissolve targeted materials in conjugation buffer. Estimate the concentration of primary amine groups on the targeted materials. Add NHS PEG stock solution to the targeted conjugation materials with the final concentration keep at least 10 mg/mL. 10~50 molar excess of PEG NHS needed for optimal conjugation; Allow mixture agitates at room temperature for 30~60 min at room temperature or 2 hours at 4 0C. Conjugates can be purified either by size exclusion chromatography or dialysis.

Documents
  • SDS
  • DataSheet

Methoxy PEG glutaric acid NHS Cat. No. PG1-SGA-5k 5000 Da 1 g修饰性聚乙二醇

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。

Methoxy PEG glutaric acid NHS

Cat. No. PG1-SGA-5k Methoxy PEG glutaric acid NHS           Cat. No. PG1-SGA-5k     5000 Da    1 g
Specification 5000 Da
Unit Size 1 g
Price $325.00

Qty Add to Cart

Description:

N-hydroxylsuccinimide (NHS) functionalized polyethylene glycol (PEG-NHS) is an amino (-NH2) reactive PEG derivative that can be used to modify protein, peptide or any other surfaces with their available amino groups. NHS esters react with primary amine groups at pH 7~8.5 to form stable amide bonds.Compared to other PEG NHS ester derivatives, our succinimidyl carbonate (SC) functionalized mPEG-NHS offers superior reactivity and higher stability in aqueous solution. NHS esters react with deprotonated primary amines, therefore, the reaction requires neutral to basic pH values to proceed. Primary amines react with NHS esters by nucleophilic attack and NHS is released as a byproduct. Hydrolysis of the NHS-ester competes with the reaction in aqueous solution and increases with increasing pH.

Physical Properties:

  • Off-white/white 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, desiccate. NHS PEG tends to hydrolyze from moisture. Avoid frequent thaw and frozen.

Reaction Procedures:

Generally, a 10 to 50-fold molar excess of NHS PEG over the amount of amine-containing material results in sufficient conjugation.

Materials Required:

  • Conjugation buffer: Sodium bicarbonate 100 mM buffer, pH 8.5 or other amine-free buffer at pH 7-8.5.
  • PEG NHS stock solution: 100 mg in 1 mL conjugation buffer.
  • Washing solution: Distilled water or any aqueous buffer.

Reaction Steps:

Dissolve targeted materials in conjugation buffer. Estimate the concentration of primary amine groups on the targeted materials. Add NHS PEG stock solution to the targeted conjugation materials with the final concentration keep at least 10 mg/mL. 10~50 molar excess of PEG NHS needed for optimal conjugation; Allow mixture agitates at room temperature for 30~60 min at room temperature or 2 hours at 4 0C. Conjugates can be purified either by size exclusion chromatography or dialysis.

Documents
  • SDS
  • DataSheet

Methoxy PEG glutaric acid NHS Cat. No. PG1-SGA-2k 2000 Da 1 g修饰性聚乙二醇

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。

Methoxy PEG glutaric acid NHS

Cat. No. PG1-SGA-2k Methoxy PEG glutaric acid NHS           Cat. No. PG1-SGA-2k     2000 Da    1 g
Specification 2000 Da
Unit Size 1 g
Price $325.00

Qty Add to Cart

Description:

N-hydroxylsuccinimide (NHS) functionalized polyethylene glycol (PEG-NHS) is an amino (-NH2) reactive PEG derivative that can be used to modify protein, peptide or any other surfaces with their available amino groups. NHS esters react with primary amine groups at pH 7~8.5 to form stable amide bonds.Compared to other PEG NHS ester derivatives, our succinimidyl carbonate (SC) functionalized mPEG-NHS offers superior reactivity and higher stability in aqueous solution. NHS esters react with deprotonated primary amines, therefore, the reaction requires neutral to basic pH values to proceed. Primary amines react with NHS esters by nucleophilic attack and NHS is released as a byproduct. Hydrolysis of the NHS-ester competes with the reaction in aqueous solution and increases with increasing pH.

Physical Properties:

  • Off-white/white 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, desiccate. NHS PEG tends to hydrolyze from moisture. Avoid frequent thaw and frozen.

Reaction Procedures:

Generally, a 10 to 50-fold molar excess of NHS PEG over the amount of amine-containing material results in sufficient conjugation.

Materials Required:

  • Conjugation buffer: Sodium bicarbonate 100 mM buffer, pH 8.5 or other amine-free buffer at pH 7-8.5.
  • PEG NHS stock solution: 100 mg in 1 mL conjugation buffer.
  • Washing solution: Distilled water or any aqueous buffer.

Reaction Steps:

Dissolve targeted materials in conjugation buffer. Estimate the concentration of primary amine groups on the targeted materials. Add NHS PEG stock solution to the targeted conjugation materials with the final concentration keep at least 10 mg/mL. 10~50 molar excess of PEG NHS needed for optimal conjugation; Allow mixture agitates at room temperature for 30~60 min at room temperature or 2 hours at 4 0C. Conjugates can be purified either by size exclusion chromatography or dialysis.

Documents
  • SDS
  • DataSheet

Methoxy PEG amido succinic acid NHS Cat. No. PG1-SAA-5k 5000 Da 1 g修饰性聚乙二醇

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。

Methoxy PEG amido succinic acid NHS

Cat. No. PG1-SAA-5k Methoxy PEG amido succinic acid NHS           Cat. No. PG1-SAA-5k     5000 Da    1 g
Specification 5000 Da
Unit Size 1 g
Price $385.00

Qty Add to Cart

Description:

N-hydroxylsuccinimide (NHS) functionalized polyethylene glycol (PEG-NHS) is an amino (-NH2) reactive PEG derivative that can be used to modify protein, peptide or any other surfaces with their available amino groups. NHS esters react with primary amine groups at pH 7~8.5 to form stable amide bonds.Compared to other PEG NHS ester derivatives, our succinimidyl carbonate (SC) functionalized mPEG-NHS offers superior reactivity and higher stability in aqueous solution. NHS esters react with deprotonated primary amines, therefore, the reaction requires neutral to basic pH values to proceed. Primary amines react with NHS esters by nucleophilic attack and NHS is released as a byproduct. Hydrolysis of the NHS-ester competes with the reaction in aqueous solution and increases with increasing pH.

Physical Properties:

  • Off-white/white 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, desiccate. NHS PEG tends to hydrolyze from moisture. Avoid frequent thaw and frozen.

Reaction Procedures:

Generally, a 10 to 50-fold molar excess of NHS PEG over the amount of amine-containing material results in sufficient conjugation.

Materials Required:

  • Conjugation buffer: Sodium bicarbonate 100 mM buffer, pH 8.5 or other amine-free buffer at pH 7-8.5.
  • PEG NHS stock solution: 100 mg in 1 mL conjugation buffer.
  • Washing solution: Distilled water or any aqueous buffer.

Reaction Steps:

Dissolve targeted materials in conjugation buffer. Estimate the concentration of primary amine groups on the targeted materials. Add NHS PEG stock solution to the targeted conjugation materials with the final concentration keep at least 10 mg/mL. 10~50 molar excess of PEG NHS needed for optimal conjugation; Allow mixture agitates at room temperature for 30~60 min at room temperature or 2 hours at 4 0C. Conjugates can be purified either by size exclusion chromatography or dialysis.

Documents
  • SDS
  • DataSheet

cas:473731-43-0|3-Amino-2-hydroxy-N-methoxy-N-methylbenzamide

cas:473731-43-0|3-Amino-2-hydroxy-N-methoxy-N-methylbenzamide

3-Amino-2-hydroxy-N-methoxy-N-methylbenzamide,分子式: C9H12N2O3 分子量: 196.203

产品介绍

上海金畔生物科技有限公司生产销售“cas:473731-43-0|3-Amino-2-hydroxy-N-methoxy-N-methylbenzamide”“3-Amino-2-hydroxy-N-methoxy-N-methylbenzamide,分子式: C9H12N2O3 分子量: 196.203”,该产品仅用于科研,如果需要请联系我们
cas:473731-43-0|3-Amino-2-hydroxy-N-methoxy-N-methylbenzamide
参数信息
外观状态: 固体或粉末
质量指标: 95%+
溶解条件: 有机溶剂/水
CAS号: N/A
分子量: N/A
储存条件: -20℃避光保存
储存时间: 1年
运输条件: 室温2周
生产厂家: 上海金畔生物科技有限公司

Methyl 4'-methoxy-[1,1'-biphenyl]-3-carboxylate,CAS:19617-68-6

Methyl 4'-methoxy-[1,1'-biphenyl]-3-carboxylate,CAS:19617-68-6

Methyl 4'-methoxy-[1,1'-biphenyl]-3-carboxylate,分子式:C15H14O3,分子量:242.27

产品介绍

上海金畔生物科技有限公司生产销售“Methyl 4'-methoxy-[1,1'-biphenyl]-3-carboxylate,CAS:19617-68-6”“Methyl 4'-methoxy-[1,1'-biphenyl]-3-carboxylate,分子式:C15H14O3,分子量:242.27”,该产品仅用于科研,如果需要请联系我们
Methyl 4'-methoxy-[1,1'-biphenyl]-3-carboxylate,CAS:19617-68-6
参数信息
外观状态: 固体或粉末
质量指标: 95%+
溶解条件: 有机溶剂/水
CAS号: N/A
分子量: N/A
储存条件: -20℃避光保存
储存时间: 1年
运输条件: 室温2周
生产厂家: 上海金畔生物科技有限公司

2,3,5,6-Tetrakis-(4-methoxy-phenylsulfanyl)-terephthalonitrile 2,3,5,6-四 – (4-甲氧基 – 苯基硫烷基)-对苯二腈一种聚集诱导发光材料

2,3,5,6-Tetrakis-(4-methoxy-phenylsulfhaiyl)-terephthalonitrile

2,3,5,6-四 – (4-甲氧基 – 苯基硫烷基) – 对苯二腈

分子式:C36H28N2O4S4

特点:

1.在固态下有强发光特性(粉末或高浓度);

2..对于紫外激发光,有很强的稳定性(不会光漂白);

3.在细胞成像及相关生物成像技术中,能产生很高的分辨率图像;

4.浓度越高,发光越强;

5.在固态或者高浓度态下,非常高的灵敏度

6.可以通过灵活的化学修饰来实现不同波段的发光调控

2,3,5,6-Tetrakis-(4-methoxy-phenylsulfhaiyl)-terephthalonitrile  2,3,5,6-四 - (4-甲氧基 - 苯基硫烷基)-对苯二腈一种聚集诱导发光材料

产地 :上海

纯度:99%

用途:仅用于科研

2-(1,3-Dioxolan-2-yl)-1-(2-methoxy-phenyl)-ethanone|cas1263365-46-3

2-(1,3-Dioxolan-2-yl)-1-(2-methoxy-phenyl)-ethanone|cas1263365-46-3

分子式C12H14O4;分子量222.24

产品介绍

上海金畔生物科技有限公司生产销售“2-(1,3-Dioxolan-2-yl)-1-(2-methoxy-phenyl)-ethanone|cas1263365-46-3”“分子式C12H14O4;分子量222.24”,该产品仅用于科研,如果需要请联系我们
2-(1,3-Dioxolan-2-yl)-1-(2-methoxy-phenyl)-ethanone|cas1263365-46-3
参数信息
外观状态: 固体或粉末
质量指标: 95%+
溶解条件: 有机溶剂/水
CAS号: N/A
分子量: N/A
储存条件: -20℃避光保存
储存时间: 1年
运输条件: 室温2周
生产厂家: 上海金畔生物科技有限公司

2-(1,3-Dioxolan-2-yl)-1-(3-methoxy-phenyl)-ethanone|cas1263365-55-4

2-(1,3-Dioxolan-2-yl)-1-(3-methoxy-phenyl)-ethanone|cas1263365-55-4

分子式C12H14O4;分子量222.24

产品介绍

上海金畔生物科技有限公司生产销售“2-(1,3-Dioxolan-2-yl)-1-(3-methoxy-phenyl)-ethanone|cas1263365-55-4”“分子式C12H14O4;分子量222.24”,该产品仅用于科研,如果需要请联系我们
2-(1,3-Dioxolan-2-yl)-1-(3-methoxy-phenyl)-ethanone|cas1263365-55-4
参数信息
外观状态: 固体或粉末
质量指标: 95%+
溶解条件: 有机溶剂/水
CAS号: N/A
分子量: N/A
储存条件: -20℃避光保存
储存时间: 1年
运输条件: 室温2周
生产厂家: 上海金畔生物科技有限公司

5-Hydroxy-7-methoxy-3-(4-hydroxybenzylidene)chroman-4-one|cas:259653-54-8

5-Hydroxy-7-methoxy-3-(4-hydroxybenzylidene)chroman-4-one|cas:259653-54-8

分子式: C17H14O5 性状: Yellow powder

产品介绍

上海金畔生物科技有限公司生产销售“5-Hydroxy-7-methoxy-3-(4-hydroxybenzylidene)chroman-4-one|cas:259653-54-8”“分子式: C17H14O5 性状: Yellow powder”,该产品仅用于科研,如果需要请联系我们
5-Hydroxy-7-methoxy-3-(4-hydroxybenzylidene)chroman-4-one|cas:259653-54-8
参数信息
外观状态: 固体或粉末
质量指标: 95%+
溶解条件: 有机溶剂/水
CAS号: N/A
分子量: N/A
储存条件: -20℃避光保存
储存时间: 1年
运输条件: 室温2周
生产厂家: 上海金畔生物科技有限公司

5-methoxy MET

上海金畔生物科技有限公司提供5-methoxy MET ,欢迎访问官网了解更多产品信息和订购。
5-methoxy MET

详情介绍

Description: 5-methoxy MET is an analytical reference standard categorized as a tryptamine. This product is intended for research and forensic applications.

Synonym: 5-methoxy MET; 5-methoxy-MET; 5 methoxy MET; 5 methoxy-MET; 5-Methoxy-N-methyl-N-ethyl-tryptamine;

IUPAC/Chemical Name: N-ethyl-2-(5-methoxy-1H-indol-3-yl)-N-methylethan-1-amine

InChi Key: AVECDEWGCOLCPZ-UHFFFAOYSA-N

InChi Code: InChI=1S/C14H20N2O/c1-4-16(2)8-7-11-10-15-14-6-5-12(17-3)9-13(11)14/h5-6,9-10,15H,4,7-8H2,1-3H3

SMILES Code: CN(CCC1=CNC2=CC=C(C=C21)OC)CC

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: >2 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

上海金畔生物代理MedKoo在中国的业务。MedKoo代理,MedKoo代理,MedKoo北京代理,MedKoo华东代理,MedKoo华北代理。

上海金畔生物科技有限公司

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1.国内试剂耗材经销代理;

2.国外试剂订购(直订,或境外代理);

3.基因组测序(二代,二代+三代);

4.基因分型(SNP检测):低// 高通量项目;

5.生物样本运输(国内、);

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Methoxy PEG Aldehyde, mPEG-CH2CHO Cat. No. PG1-AL-5k-1 5000 Da 1 g修饰性聚乙二醇

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。

Methoxy PEG Aldehyde, mPEG-CH2CHO

Cat. No. PG1-AL-5k-1 Methoxy PEG Aldehyde, mPEG-CH2CHO           Cat. No. PG1-AL-5k-1     5000 Da    1 g
Specification 5000 Da
Unit Size 1 g
Price $385.00

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PEG Aldehyde Description:

Aldeyde PEG is an amine reactive PEG derivative that can be used to modify biomolecules via available amine groups. The reaction between aldehyde group with ε-amine of lysine residues and the α-amine at the N-terminus produces an intermediate Schiff base. Further reduction with hydride will form a stable C-N bond. PEG aldehydes react with amine groups at a pH of from 5.5 to 9.5. Higher pH will result in multiple Pegylation with both terminal and lysine groups. Aldehyde PEG is a commonly used PEG reagent for n-terminus pegylation in proteins or peptides.

Physical Properties:

  • Off-white/white 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

Reaction Procedures:

Generally, a 10- to 50-fold molar excess of PEG aldehyde over the amount of amine-containing material results in sufficient conjugation.

Materials Required:

  • Pegylation buffer: Amine-free aqueous buffer, pH 6~8.5.
  • PEG aldehyde stock solution: 100 mg in 1 mL conjugation buffer.
  • Washing solution: Distilled water or any aqueous buffer.

Reaction Steps:

Dissolve targeted materials in pegylation buffer. Estimate the concentration of primary amine groups on the targeted materials. Add PEG aldehyde stock solution to the targeted conjugation materials with the final concentration keep at least 10 mg/mL. Allow mixture agitates at room temperature for 2~4 hrs at room temperature or overnight 4 0C. After reaction, C=N bond can be reduced by sodium borohydride. Conjugate can be purified either by size exclusion chromatography or dialysis.

Documents
  • SDS
  • DataSheet