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Product details
Catalog number 135000-65-35.1G
Price for 135000-65-35.1G
Size / count 1 g
This PEG linker with a maleimide endgroup is applied in sulfhydryl-selective coupling of PEG to proteins and other thiol substrates and for selective scavenging of thiol containing peptides. The maleimide group reacts at about neutral pH with free thiols via a Michael addition to form a stable thioether bond. PEG-NHS derivatives are active esters and useful reagents to pegylate proteines, peptides or any other surfaces with a free primary amino group to form stable amide bonds. The Reaction requires a neutral to alkaline pH (7 to 8.5) to proceed. However, hydrolysis competes with aminolysis of the active ester and also increases with higher pH. Thus, working with excess PEG-NHS ester is necessary to obtain high pegylation yields. The PEG butyric acid NHS ester derivative has a C4 chain directly attached to PEG. It is one of the most stable PEG NHS esters known with a hydrolysis half-life of over 20 min at pH 8.
The catalog number for Ɑ-Butyric Acid NHS Ester-ω-Maleimidohexanamido PEG is 135000-65-35.1G.
Ɑ-Butyric Acid NHS Ester-ω-Maleimidohexanamido PEG is available in the following size(s): 1 g.
Ɑ-Butyric Acid NHS Ester-ω-Maleimidohexanamido PEG is currently made to order / not held in immediate stock. Contact us for lead time.
This PEG linker with a maleimide endgroup is applied in sulfhydryl-selective coupling of PEG to proteins and other thiol substrates and for selective scavenging of thiol containing peptides. The maleimide group reacts at about neutral pH with free thiols via a Michael addition to form a stable thioe
No. This product, like all items we supply, is intended for research laboratory use only and must not be used for diagnostics, therapeutics, treatment, or consumption by humans or animals.
Shelf life and expiration dates vary by product and are shown on the product listing and label. Products used beyond their expiration date are not eligible for performance-related returns or refunds, so please check the lot number and expiry before use.
The expression system, such as E. coli, HEK293, or insect cells, is listed on the datasheet under production details, which can affect post-translational modifications relevant to your application.
