High-efficiency Inhibitor ZJ-701 4-Hydroxy-2,2,6,6,-tetramethyl-piperidin-1-oxyl free radicalMolecular formula：C9H18NO2Molecular weight : 172.25 Product quality indexesApperanceOrange crystalMelting point≥65.0%Assay≥99.0%Tetramethyl-4-piperidinol≤0.5%Purpose:This product is a high-quality inhibitor of the new-generation vinyl monomer to substitute hydroquinone which may cause heavy pollution to the enviroment,and is is widely used in the production of acrylic acid ester,methyl acrylic acid ester and vinyl acetate,as well as chloroethylene,unsaturated polyester and pesticide puma.