4arm PEG GPC Standards Kit


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


JenKem Technology’s 4ARM PEG GPC Standards kit (STD4ARMPEG) includes 200 mg each of 4ARM-PEG-2000, 4ARM-PEG-5000, 4ARM-PEG-10K, 4ARM-PEG-20K, and 4ARM-PEG-40K (MW 2kDa, 5kDa, 10kDa, 20kDa and 40kDa, respectively).

GPC calibration PEGs

The quality of the PEG analytical standards is very important for GPC characterization of PEGs and PEGylated products. JenKem Technology’s PEG GPC calibration standards have narrower polydispersity and more accurate molecular weights compared to other PEG standards on the market.  The molecular weights of JenKem PEG standards are determined by MALDI-TOF. The polydispersity of JenKem PEG standards is determined by GPC. JenKem 4armPEG Standards

Gel permeation chromatography (GPC) is a type of size exclusion chromatography. GPC separates mixture components based on molecule size, and it can be used to determine the number average molecular weight (Mn), weight average molecular weight (Mw), and peak average molecular weight of polymers.

Click here to download the MSDS


  1. Two-component cross-linkable gels for fabrication of solid oral dosage forms, Journal of Controlled Release, 2019.
  2. Prednisolone-α-cyclodextrin-star poly(ethylene glycol) polypseudorotaxane with delayed pH-sensitivity as a targeted drug delivery system, International Journal of Pharmaceutics 2011, Volume 414, Issues 1–2, 29, Pages 42-47.
  3. Prednisolone-a-cyclodextrin-star PEG polypseudorotaxanes with controlled drug delivery properties, Org. Biomol. Chem., 2010, 8, 5423–5430.
  4. Targeted antifungal delivery system: β-Glucosidase sensitive nystatin–star poly(ethylene glycol) conjugate, International Journal of Pharmaceutics 2010, 386(1–2), p: 1–5.

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 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 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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