CAS Registry Number

CAS 14691-88-4 — 4-Amino-TEMPO (4-Amino-2,2,6,6-tetramethylpiperidinyloxy)

4-Amino-TEMPO (4-Amino-2,2,6,6-tetramethylpiperidinyloxy) is a stable nitroxide radical widely used as a catalyst in oxidation reactions, a spin label in EPR spectroscopy, and a mediator in organic synthesis. It is a crystalline solid with high thermal stability and solubility in organic solvents. CAS 14691-88-4, molecular formula C9H19N2O, molecular weight 171.26 g/mol. Store at 2 to 8°C under inert gas to prevent decomposition. Signal word: Warning (irritant, may cause skin and eye irritation). Molekula supplies 4-Amino-TEMPO from research to bulk quantities with full documentation and ISO 9001:2015 traceability.