mPEG amide acetaldehyde Cat. No. PG1-ALA-5k 5000 Da 250 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。

mPEG amide acetaldehyde

Cat. No. PG1-ALA-5k mPEG amide acetaldehyde           Cat. No. PG1-ALA-5k     5000 Da    250 mg
Specification 5000 Da
Unit Size 250 mg
Price $385.00

Qty Add to Cart

Description:

mPEG amide acetaldehyde is a site specific Pegylation reagent with amine reactive aldehyde group. Aldeyde PEG is a common N-terminal amine group pegylation reagent. The reaction between aldehyde group with 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 n-terminus amine groups at a pH of from 5.0 to 9.5. Higher pH will result in multiple Pegylation with both terminal and lysine groups.

Physical Properties:

  • Off-white/white solid;
  • Soluble in water, DMSO, DMF;
  • Activity >90%; Peroxide<10ppm;

Storage Conditions:

  • Store at -20 0C

Reaction Procedures:

Generally, a 5- to 10-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 5.0~6.5.
  • PEG aldehyde stock solution: 50 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

mPEG amide acetaldehyde Cat. No. PG1-ALA-2k 2000 Da 250 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。

mPEG amide acetaldehyde

Cat. No. PG1-ALA-2k mPEG amide acetaldehyde           Cat. No. PG1-ALA-2k     2000 Da    250 mg
Specification 2000 Da
Unit Size 250 mg
Price $385.00

Qty Add to Cart

Description:

mPEG amide acetaldehyde is a site specific Pegylation reagent with amine reactive aldehyde group. Aldeyde PEG is a common N-terminal amine group pegylation reagent. The reaction between aldehyde group with 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 n-terminus amine groups at a pH of from 5.0 to 9.5. Higher pH will result in multiple Pegylation with both terminal and lysine groups.

Physical Properties:

  • Off-white/white solid;
  • Soluble in water, DMSO, DMF;
  • Activity >90%; Peroxide<10ppm;

Storage Conditions:

  • Store at -20 0C

Reaction Procedures:

Generally, a 5- to 10-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 5.0~6.5.
  • PEG aldehyde stock solution: 50 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

mPEG amide acetaldehyde Cat. No. PG1-ALA-10k 10000 Da 250 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。

mPEG amide acetaldehyde

Cat. No. PG1-ALA-10k mPEG amide acetaldehyde           Cat. No. PG1-ALA-10k     10000 Da    250 mg
Specification 10000 Da
Unit Size 250 mg
Price $385.00

Qty Add to Cart

Description:

mPEG amide acetaldehyde is a site specific Pegylation reagent with amine reactive aldehyde group. Aldeyde PEG is a common N-terminal amine group pegylation reagent. The reaction between aldehyde group with 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 n-terminus amine groups at a pH of from 5.0 to 9.5. Higher pH will result in multiple Pegylation with both terminal and lysine groups.

Physical Properties:

  • Off-white/white solid;
  • Soluble in water, DMSO, DMF;
  • Activity >90%; Peroxide<10ppm;

Storage Conditions:

  • Store at -20 0C

Reaction Procedures:

Generally, a 5- to 10-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 5.0~6.5.
  • PEG aldehyde stock solution: 50 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

mPEG amide acetaldehyde Cat. No. PG1-ALA-20k 20000 Da 250 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。

mPEG amide acetaldehyde

Cat. No. PG1-ALA-20k mPEG amide acetaldehyde           Cat. No. PG1-ALA-20k     20000 Da    250 mg
Specification 20000 Da
Unit Size 250 mg
Price $385.00

Qty Add to Cart

Description:

mPEG amide acetaldehyde is a site specific Pegylation reagent with amine reactive aldehyde group. Aldeyde PEG is a common N-terminal amine group pegylation reagent. The reaction between aldehyde group with 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 n-terminus amine groups at a pH of from 5.0 to 9.5. Higher pH will result in multiple Pegylation with both terminal and lysine groups.

Physical Properties:

  • Off-white/white solid;
  • Soluble in water, DMSO, DMF;
  • Activity >90%; Peroxide<10ppm;

Storage Conditions:

  • Store at -20 0C

Reaction Procedures:

Generally, a 5- to 10-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 5.0~6.5.
  • PEG aldehyde stock solution: 50 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

Maleimide-NOTA | CAS 1295584-83-6|大环配体配合物

Maleimide-NOTA    CAS 1295584-83-6

中文名称:Maleimido-mono-amide-NOTA

中文同义词:马来酰亚胺单酰胺;马来酰亚胺基-MONO-AMIDE-NOTA;NOTA-马来酰亚胺

英文名称:Maleimido-mono-amide-NOTA

英文同义词:

Maleimido-mono-amide-NOTA;Maleimide-NOTA;1H-1,4,7-Triazonine-1,4(5H)-diaceticacid,7-[2-[[2-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)ethyl]amino]-2-oxoethyl]hexahydro-;NOTA-Maleimide

CAS:1295584-83-6

分子式:C18H27N5O7

分子量:425.44

Maleimide-NOTA   | CAS 1295584-83-6|大环配体配合物

配合物由内界和外界两部分组成。内界为配合物的特征部分(即配位个体),是一个在溶液中相当稳定的整体,在配合物的化学式中以方括号标明。方括号以外的离子构成配合物的外界,内界与外界之间以离子键结合。内界与外界离子所带电荷的总量相等,符号相反。显然,中性配位个体只有内界,没有外界。

在进行研究过程中,通过改变大环配体环的大小、配位原子的种类和环取代基,以使配体与金属离子络合物的稳定性差异达到最大程度。在过去几年中,我们曾报道了不同类型的双苯代大环配体设计,合成、及其配位化学研究

上海金畔生物有限公司可以提供各种大环化合物,包含大环配体、双功能螯合剂、环糊精、聚醚、葫芦脲、卟啉、酞菁、磁共振试剂、反应中间体等一系列产品;

DOTA tris(tBu)ester NHS ester CAS 819869-77-7

Maleimide-DOTA  CAS 1006711-09-5

Maleimide-DOTA-GA   CAS 1800229-46-2

DOTA-GA-Anhydride CAS 1375475-53-8

Eu-DOTA-4AmC CAS:481668-57-9

Tm-p-SCN-Bn-DOTA CAS:2126179-32-4

DO2AtBu CAS 162148-48-3

DO3AtBu CAS 122555-91-3

DO3AM    CAS 331230-43-4

DOTAM CAS 157599-02-5

DOTAEt    CAS 137076-50-7

NO2AtBu CAS 174137-97-4

NOTAM    CAS 180299-76-1

TETRAM  CAS 220554-75-6

TETAEt  CAS 126320-57-8

TETAMEt2 CAS 126320-56-7

TETAMMe2 CAS 345612-68-2

TETAM    CAS 345612-63-7

CB-TE2A  CAS 313229-90-2

BCN-DOTA

1.关于颜色

产品因不同产品的分子量不同,产品性状和颜色会有差别。

2.关于客服

如您的咨询没能及时回复,可能是当时咨询量过大或是系统故障。

我们将提供售后服务。

3.关于发货

我们的合作快递公司有顺丰、圆通、申通、韵达。

仅用于用于科研,不能用于人体试验(zyl 2022.04.27)

Azido-mono-amide-DOTA-tris(t-Bu ester)| CAS:1402795-92-9| 螯合剂试剂

Azido-mono-amide-DOTA-tris(t-Bu ester) CAS:1402795-92-9

文名称:Azido-Mono-aMide-DOTA-tris(t-butylester)

中文同义词:叠氮基-MONO-AMIDE-DOTA-三叔丁酯;

单酰胺-DOTA-(叔丁基酯);DOTA-三叔丁酯叠氮

英文名称:Azido-Mono-aMide-DOTA-tris(t-butylestr)

英文同义词:

Azido-Mono-aMide-DOTA-tris(t-butylester);Azido-mono-amide-DOTA-tris(t-Buester);DOTA-(COOt-Bu)3-azide

CAS:1402795-92-9

分子式:C31H58N8O7

分子量:654.85

Azido-mono-amide-DOTA-tris(t-Bu ester)| CAS:1402795-92-9| 螯合剂试剂

配合物由内界和外界两部分组成。内界为配合物的特征部分(即配位个体),是一个在溶液中相当稳定的整体,在配合物的化学式中以方括号标明。方括号以外的离子构成配合物的外界,内界与外界之间以离子键结合。内界与外界离子所带电荷的总量相等,符号相反。显然,中性配位个体只有内界,没有外界。

上海金畔生物有限公司可以提供各种大环化合物,包含大环配体、双功能螯合剂、环糊精、聚醚、葫芦脲、卟啉、酞菁、磁共振试剂、反应中间体等一系列产品;

DOTAEt    CAS 137076-50-7

NO2AtBu CAS 174137-97-4

NOTAM    CAS 180299-76-1

TETRAM  CAS 220554-75-6

TETAEt  CAS 126320-57-8

TETAMEt2 CAS 126320-56-7

TETAMMe2 CAS 345612-68-2

TETAM    CAS 345612-63-7

CB-TE2A  CAS 313229-90-2

TRITRAM  CAS 1301738-72-6

Methylamino-(13)haieN4 CAS 1226971-10-3

TRITAM    CAS 1020253-67-1

TRITA    CAS 402955-04-8

PCTA    CAS 129162-88-5

Mono-N-Benzyl-Cyclen CAS 112193-83-6

Trhais-N-Dibenzyl-Cyclen CAS 156970-79-5

TriBoc-Cyclen  CAS 175854-39-4

Mono-N-benzyl TACN CAS 174912-95-9

DiBoc TACN CAS 174138-01-3

Formaldehyde-Cyclam CAS 75920-10-4

Cis-Glyoxal-Cyclam CAS 74199-16-9

Trhais-N-Dibenzyl-Cyclam CAS 214078-93-0

TriBoc-Cyclam  CAS 170161-27-0

DiBoc TACD  CAS 174192-40-6

1.关于颜色

产品因不同产品的分子量不同,产品性状和颜色会有差别。

2.关于客服

如您的咨询没能及时回复,可能是当时咨询量过大或是系统故障。

我们将提供售后服务。

3.关于发货

我们的合作快递公司有顺丰、圆通、申通、韵达。

仅用于用于科研,不能用于人体试验(zyl 2022.04.27)