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Product Name :
Epoxide-PEG-Epoxide, MW 2k

Classification :
PEG Products / Epoxide-PEG-Epoxide, MW 2k

Description :
Epoxide-PEG-Epoxide (EP-PEG-EP) is a linear bifunctional PEG reagent with two epoxide groups. Epoxide-PEG-Epoxide is useful to crosslink or PEGylate amine or hydroxyl containing molecules and surfaces.

Properties:
Molecular weight: MW of PEG was measured by MALDI-MS or GPC. PDI (polydispersity index) of our linear PEG is 1.02-1.05 with very narrow MW distribution. The number of repeating ethylene oxide units (CH2CH2O) or the degree of polymerization is calculated dividing the PEG MW by 44 (44 is the molecular mass of one repeating unit).Solubility: Soluble in water and aqueous buffer, chloroform, methylene chloride, DMF, DMSO, and less soluble in alcohol, toluene. Not soluble in ether.Density: PEG density is approximately 1.125 g/mLPhysical form: PEG products generally appear as white or off-white powder, and for very low MW linear PEG such as MW 1k or less, it may appear as wax-like, semi-solid material due to the low MW and the type of functional groups.Storage condition: PEG product shall be stored in the original form as received in a freezer at -20C or lower for long term storage. Stock solution of PEG reagents that do not contain oxygen or moisture sensitive functional groups may be temporarily stored in a refrigerator or ambient temperature for multiple days. Stock solution should avoid repeated freeze-and-thaw cycles. See Documents section for detailed storage and handling conditions.

References:
1. Effect of polyethylene glycol tether size and chemistry on the attachment of lactase to polyethylene films. Journal of Applied Polymer Science 127.2 (2013): 1203-1210. TextClick here to view an expanded list of hundreds of publications citing Creative PEGWorks products.

Antibodies are immunoglobulins secreted by effector lymphoid B cells into the bloodstream. Antibodies consist of two light peptide chains and two heavy peptide chains that are linked to each other by disulfide bonds to form a “Y” shaped structure. Both tips of the “Y” structure contain binding sites for a specific antigen. Antibodies are commonly used in medical research, pharmacological research, laboratory research, and health and epidemiological research. They play an important role in hot research areas such as targeted drug development, in vitro diagnostic assays, characterization of signaling pathways, detection of protein expression levels, and identification of candidate biomarkers.
Related websites: https://www.medchemexpress.com/antibodies.html
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