Collection: Organic Radicals [Magnetic Materials]

Organic Radicals [Magnetic Materials] — includes stable nitroxide radicals, mainly TEMPO and pyrrolidine-oxyl derivatives, which have unpaired electrons and are therefore paramagnetic. This group serves as a basic material for research on molecular magnetic properties and as spin labels in various spectroscopic techniques.

Organic Radicals are used by materials chemistry researchers and EPR/ESR spectroscopists as spin labels to track molecular dynamics, measure distances between sites in proteins, and as radical traps in reaction mechanism studies. Derivatives such as PTIO serve as reference reagents for the simultaneous detection of nitrogen oxide compounds in air, while sublimed TEMPO derivatives are used in the synthesis of molecular magnetic materials and selective oxidation catalysts.

Example products in this collection: TCI T3751 2564-83-2 2,2,6,6-Tetramethylpiperidine 1-Oxyl Free Radical (purified by sublimation), TCI B5642 2516-92-9 Bis(2,2,6,6-tetramethyl-4-piperidyl-1-oxyl) Sebacate, TCI T3169 147045-24-7 2,2,6,6-Tetramethyl-4-(2-propynyloxy)piperidine 1-Oxyl Free Radical, TCI C1406 2154-68-9 3-Carboxy-2,2,5,5-tetramethylpyrrolidine 1-Oxyl Free Radical, TCI T1560 2564-83-2 2,2,6,6-Tetramethylpiperidine 1-Oxyl Free Radical, TCI C1428 37149-18-1 4-Carboxy-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical, TCI A5440 18390-00-6 PTIO (=2-Phenyl-4,4,5,5-tetramethylimidazoline-3-oxide-1-oxyl) [Stable free radical reagent for the simultaneous determination of NO and NO2 in the atmosphere], TCI C1432 36775-23-2 4-(2-Chloroacetamido)-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical.

Pay attention to purity levels, especially for products purified by sublimation, because radical stability and spin signal reproducibility depend heavily on the absence of other paramagnetic impurities that could disrupt spectrum readings. 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 Magnetic Materials, often used together in a single laboratory workflow:

• Magnetic Metal Complexes
• Polymer & Macromolecule Reagents
• Polymer/Macromolecule Reagents
• Functional Material Building Blocks
• Material Building Blocks
• Organic Electronic Materials

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