JenKem PEG Quality

Activated PEG Products from JenKem Technology

JenKem Technology manufactures high quality reactive polyethylene glycol derivatives (activated PEG products) with high purity and narrow polydispersity, from small non-GMP laboratory scale to commercial scale in GMP and non-GMP grade.

Functionally, JenKem Technology’s PEG products include activated PEG derivatives for amine PEGylation, active PEG derivatives for N-terminal PEGylation, and active PEG derivatives for thiol PEGylation, and carboxyl PEGylation. Structurally, JenKem Technology’s PEG products include JenKem® proprietary Y-shape branched PEG derivatives; linear M-PEG derivatives with low diol content; homobifunctional PEG derivatives; heterobifunctional PEG derivatives; multi-arm homofunctional reactive PEGs for hydrogels; multi-arm heterofunctional PEG derivatives for ADC development; and biodegradable PEG copolymers with polyaminoacids such as polyglutamic acid or polylysine, and PLA, PLGA, PCL or other polymers. Please visit our website for more information on the vast applications of JenKem® activated PEG products and related reference papers.

PEG raw materials (PEGs containing inactive hydroxyl groups) are provided in bulk in non-GMP grade. JenKem Technology’s PEG raw materials are manufactured in house, back-integrated to production directly from ethylene oxide. GPC calibration standards, necessary for accurate GPC analysis of PEG products, are provided in GPC calibration kits for linear PEGs and 4arm PEGs.

JenKem Technology’s PEGs are utilized widely in the pharmaceutical, biotechnology, medical device and diagnostics, and emerging chemical specialty fields, from laboratory through commercial scale. Please visit the product pages below or to the left, to learn about our extensive line of activated PEGs and PEG co-polymers and to place an online order directly with JenKem Technology. For global distribution information, please visit link. For custom synthesis of special PEG derivatives, please visit our website.

JenKem Technology Bulk and GMP PEGs

JenKem Technology provides GMP PEG derivatives via custom synthesis. JenKem Technology is capable of development and synthesis of a wide range of GMP PEG derivatives starting at 200g up to 40 kg or greater batches, under ISO 13485 certified Quality Management System, following ICH Q7A guidelines. For inquiries on cGMP production of PEG derivatives please contact us at

For bulk catalog orders please contact us at for a quotation. For custom PEG synthesis of PEG products with different MW and functionalities from our catalog selection, please contact us at for availability and quotations.

Founded in 2001 by recognized 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 synthesis and PEGylation services. JenKem Technology is ISO 9001 and ISO 13485 certified, and adheres to ICH Q7A guidelines for GMP manufacture. The production of JenKem® PEGs is back-integrated to on-site manufacturing from ethylene oxide, enabling facile traceability for GMP 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.