4-Hydroxy-2,2,6,6-tetramethyl-piperidinooxy is suitable for preventing the self-polymerization of polyolefin monomers during production, separation, refining, storage or transportation, and controlling and regulating the polymerization degree of olefins and their derivatives in organic synthesis reactions.



CAS NO: 2226-96-2

Appearance: Orange crystals crystalline powder

Purity: ≥99%

Molecular weight: 172.24

Einecs No.: 218-760-9



Test ItemStandard
AppearanceOrange crystals crystalline powder
Purity  99.06%
Melting point70-72℃


Use Of 4-Hydroxy-2,2,6,6-tetramethyl-piperidinooxy:

This product is used as a high-efficiency polymerization inhibitor for acrylic acid, acrylonitrile, acrylate, methacrylate, vinyl chloride, pesticides, and unsaturated resins. It can replace benzenediol and is a new generation of environmentally friendly products.


Package of 4-Hydroxy-2,2,6,6-tetramethyl-piperidinooxy:

25kg/Drum or as customer requirement


Storage: Stored in a dry, ventilated environment.