Monofunctional PEG and Oligoethylene Glycols — a collection of oligoethylene glycol and short-chain PEG compounds with one terminal functional group such as azido, amino, or alkyne, while the other end is methyl or hydroxyl. This monofunctional structure facilitates directed conjugation at only one reactive site.
Monofunctional PEG and Oligoethylene Glycols are used by bioconjugation and click chemistry researchers to link molecules, peptides, or material surfaces through azide-alkyne click reactions or amidation. Linkers such as azido-PEG or amino-PEG provide a hydrophilic spacer that improves the solubility of conjugates in aqueous media, commonly used in the development of probes, labels, and molecule delivery systems.
Example products in this collection: TCI T3698 1422540-88-2 Acetylthio-PEG4-Alkyne, TCI B5587 186020-66-6 tert-Butyl 12-Hydroxy-4,7,10-trioxadodecanoate, TCI T3114 208827-90-1 Triethylene Glycol Mono(2-propynyl) Ether, TCI B5901 518044-32-1 PEG5-Carboxylic Acid tert-Butyl Ester, TCI A2500 86770-68-5 Azido-PEG5, TCI B5902 581065-94-3 tert-Butyl 1-(Tosyloxy)-3,6,9,12-tetraoxapentadecan-15-oate, TCI A2420 6338-55-2 Amino-PEG3, TCI D4580 7218-43-1 Diethylene Glycol Mono(2-propyn-1-yl) Ether.
Select the type of terminal functional group (azido, amino, alkyne, thiol) and the length of the ethylene glycol chain (number of PEG units) according to conjugation requirements and the desired spacer distance. All products are genuine products of Tokyo Chemical Industry (TCI) Japan, with purity, packaging, and storage conditions listed on each product page.
Other categories at the same level under PEGylation, often used together in one 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.
