Methoxy PEG Thiol


PEG products with additional MW may be made to order, please contact us for details


Methoxy PEG Thiol with superior quality specification of ≥95% Substitution.

Methoxy PEG Thiol is a high quality activated PEG product for thiol pegylation. Methoxy PEG Thiol PEGylates the thiol groups on cysteine side chains under mild reaction conditions. JenKem Technology offers Methoxy PEG Thiol with MW 5kDa (M-SH-5000), MW 20kDa (M-SH-20K), MW 30kDa (M-SH-30K), and MW 40kDa (M-SH-40K), in 1g and 10g packing sizes.

Different MW of methoxy thiol PEG products may be available by custom synthesis, please email us at for details on custom PEGs. JenKem Technology provides repackaging services for an additional fee, please contact us if you require a different package size than our catalog selection.

Bulk PEGs and GMP PEGs are made-to-order. Please contact us for bulk pricing.

Click here to download the MSDS


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Founded in 2001 by experts in PEG synthesis and PEGylation, JenKem Technology specializes exclusively in the development and manufacturing of high quality polyethylene glycol (PEG) products and derivatives, and related custom polymer synthesis and PEGylation services. JenKem Technology is ISO 9001 and ISO 13485 certified, and adheres to ICH Q7 guidelines for GMP manufacture. The production of JenKem® PEGs is back-integrated to in-house polymerization from ethylene oxide, enabling facile traceability for regulated customers. JenKem Technology caters to the PEGylation needs of the pharmaceutical, biotechnology, medical device and diagnostics, and emerging chemical specialty markets, from laboratory scale through large commercial scale.

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