PEG Oligomers

PEG Oligomers — contains ethylene glycol oligomers with a specific number of ethylene oxide units, in either free diol or monomethyl ether form, ranging from triethylene glycol to octaethylene glycol. These short, uniform chains distinguish them from high-molecular-weight polymeric polyethylene glycol.

These PEG oligomers are used by bioorganic and pharmaceutical chemistry researchers in PEGylation reactions to attach short hydrophilic chains to proteins, peptides, or small molecules in order to modify solubility and pharmacokinetic properties. Monomethyl ether derivatives such as tetraethylene glycol monomethyl ether and pentaethylene glycol monomethyl ether are also commonly used as building blocks for linker and spacer synthesis in conjugation chemistry.

Example products in this collection: TCI T1372 23783-42-8 Tetraethylene Glycol Monomethyl Ether, TCI D2900 5579-66-8 Decaethylene Glycol, TCI T0428 112-27-6 Triethylene Glycol, TCI D2901 6790-09-6 Dodecaethylene Glycol, TCI T0099 112-60-7 Tetraethylene Glycol, TCI E0048 111-90-0 Diethylene Glycol Monoethyl Ether, TCI P1159 23778-52-1 Pentaethylene Glycol Monomethyl Ether, TCI E0167 112-50-5 Triethylene Glycol Monoethyl Ether.

Pay attention to the chain length (number of ethylene oxide units) that suits your spacer requirements, the end group (free diol or monomethyl ether), and the purity and low water content needed for moisture-sensitive conjugation reactions. All products are genuine Tokyo Chemical Industry (TCI) Japan products, with purity, packaging, and storage conditions listed on each item's page.

Other parallel categories under PEGylation, often used together in a single laboratory workflow:

Back to PEGylation. For large-volume procurement, special packaging, or specific grades, contact the AMI Scientific team — official distributor of TCI Japan in Indonesia — to check availability and lead time directly from Japan.

Related TCI catalogs (PDF)

17 products