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A596992-500mgAcid-PEG4-mono-methyl ester is a PEG derivative with a carboxylic acid and methyl ester group. Methyl ester can be hydrolyzed under strong basic condition. The carboxylic acid can be reacted with primary amines in the presence of EDC and DCC to form
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A597248-100mgAcid-PEG4-S-PEG4-acid contains two terminal carboxylic acid groups. The carboxylic acid groups can be reacted with primary amines in the presence of activators such as EDC and DCC to form stable amide bonds. The hydrophilic PEG chains increase the
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A597248-250mgAcid-PEG4-S-PEG4-acid contains two terminal carboxylic acid groups. The carboxylic acid groups can be reacted with primary amines in the presence of activators such as EDC and DCC to form stable amide bonds. The hydrophilic PEG chains increase the
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A597248-500mgAcid-PEG4-S-PEG4-acid contains two terminal carboxylic acid groups. The carboxylic acid groups can be reacted with primary amines in the presence of activators such as EDC and DCC to form stable amide bonds. The hydrophilic PEG chains increase the
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A596686-100mgAcid-PEG4-SS-PEG4-acid is a cleavable PEG linker with carboxylic acid groups at both terminus. The disulfide bonds can be cleaved via a reduction reaction using Dithiothreitol (DTT) reagent. The terminal carboxylic acids can be reacted with primary
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A596686-250mgAcid-PEG4-SS-PEG4-acid is a cleavable PEG linker with carboxylic acid groups at both terminus. The disulfide bonds can be cleaved via a reduction reaction using Dithiothreitol (DTT) reagent. The terminal carboxylic acids can be reacted with primary
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A596686-500mgAcid-PEG4-SS-PEG4-acid is a cleavable PEG linker with carboxylic acid groups at both terminus. The disulfide bonds can be cleaved via a reduction reaction using Dithiothreitol (DTT) reagent. The terminal carboxylic acids can be reacted with primary
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A597252-100mgAcid-PEG4-Sulfone-PEG4-acid contains two PEG-acid chains connected by a sulfone group. The sulfone group can be conjugated with thiol groups of proteins. The terminal carboxylic acid can react with primary amines in the presence of activators such
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A597252-1gAcid-PEG4-Sulfone-PEG4-acid contains two PEG-acid chains connected by a sulfone group. The sulfone group can be conjugated with thiol groups of proteins. The terminal carboxylic acid can react with primary amines in the presence of activators such
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A597252-250mgAcid-PEG4-Sulfone-PEG4-acid contains two PEG-acid chains connected by a sulfone group. The sulfone group can be conjugated with thiol groups of proteins. The terminal carboxylic acid can react with primary amines in the presence of activators such
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A597252-500mgAcid-PEG4-Sulfone-PEG4-acid contains two PEG-acid chains connected by a sulfone group. The sulfone group can be conjugated with thiol groups of proteins. The terminal carboxylic acid can react with primary amines in the presence of activators such
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A596993-100mgAcid-PEG4-t-butyl ester is a PEG derivative containing a t-butyl protected carboxyl group with a terminal carboxylic acid. The terminal carboxylic acid can be reacted with primary amine groups in the presence of activators (e.g. EDC, or DCC) to form