Nitroxide-Mediated Radical Polymerization (NMP) Reagents — includes stable nitroxide radicals such as TEMPO and its derivatives that function as control agents (mediators) in controlled radical polymerization. These compounds work by forming reversible bonds with the growing radical chain, so polymerization can proceed in a living manner with a narrow molecular weight distribution.
Polymer researchers use these reagents to synthesize block copolymers and complex macromolecular architectures through nitroxide-mediated radical polymerization (NMP), where nitroxide radicals reversibly control chain growth. Besides serving as polymerization mediators, certain TEMPO derivatives are also used as catalysts for oxidizing alcohols to aldehydes or ketones in organic synthesis. The stable free radical form at room temperature makes these compounds easy to handle in various radical reaction schemes.
Example products in this collection: TCI T3751 2564-83-2 2,2,6,6-Tetramethylpiperidine 1-Oxyl Free Radical (purified by sublimation), TCI C1428 37149-18-1 4-Carboxy-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical, TCI T1560 2564-83-2 2,2,6,6-Tetramethylpiperidine 1-Oxyl Free Radical, TCI H0865 2226-96-2 4-Hydroxy-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical, TCI A1348 14691-89-5 4-Acetamido-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical [Catalyst for Oxidation], TCI H0878 3225-26-1 4-Hydroxy-2,2,6,6-tetramethylpiperidine 1-Oxyl Benzoate Free Radical [Catalyst for Oxidation], TCI A1343 14691-88-4 4-Amino-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical, TCI M1197 95407-69-5 4-Methoxy-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical [Catalyst for Oxidation].
Selection depends on the purity level (for example, sublimation-purified material) and on the functional groups on the piperidine ring, such as amino, acetamido, or oxy, which determine how easily further conjugation can be carried out. 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 Radical Chemistry, often used together in one laboratory workflow:
Back to Radical Chemistry. 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.
