Description

Hexahydro-n-(2,2,6,6-Tetramethyl-4-Piperidyl)Phthalimide is a high-performance hindered amine light stabilizer (HALS) intermediate. This compound is critical for imparting exceptional resistance to photo-oxidative degradation in polymers exposed to UV radiation. It is primarily needed by manufacturers of plastics, coatings, and synthetic fibers seeking to enhance the longevity and color stability of their products under demanding environmental conditions.

Application

• Primary intermediate for the synthesis of high-efficiency hindered amine light stabilizers (HALS).
• Used in the stabilization of polyolefins (PP, PE) against UV-induced degradation and embrittlement.
• Essential additive in automotive coatings and industrial paints to prevent gloss loss and chalking.
• Key component in the production of light-stabilized engineering plastics and synthetic fibers.
• Employed in agricultural films and greenhouse covers to extend service life under sunlight.
• Used in formulations for outdoor furniture, stadium seats, and other weather-exposed plastic articles.

Basic Information

Product Name	Hexahydro-n-(2,2,6,6-Tetramethyl-4-Piperidyl)Phthalimide
CAS No.	79720-22-2
Molecular Formula	C₁₇H₂₈N₂O₂
Molecular Weight	292.42 g/mol
Synonyms	1,2,3,6-Tetrahydro-N-(2,2,6,6-tetramethyl-4-piperidinyl)phthalimide; 1,2,3,6-Tetrahydro-N-(2,2,6,6-tetramethylpiperidin-4-yl)phthalimide; N-(2,2,6,6-Tetramethyl-4-piperidyl)-1,2,3,6-tetrahydrophthalimide; HALS Intermediate; UV Stabilizer Intermediate; Light Stabilizer Precursor; Tetramethylpiperidyl Phthalimide Derivative
EINECS	Contact for details

Quality Control

Our Hexahydro-n-(2,2,6,6-Tetramethyl-4-Piperidyl)Phthalimide is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for polymer stabilization. Certificates of Analysis (COA) detailing all specifications are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.5%
Melting Point	118 - 122 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.