Description

1,2,3,6-Tetrahydro-4-Methyl-n-(2,2,6,6-Tetramethyl-4-Piperidyl)Phthalimide is a high-purity hindered amine light stabilizer (HALS) intermediate, essential for enhancing the durability and longevity of polymer materials. This compound is critical for formulators seeking to protect sensitive polymers from degradation caused by UV radiation and thermal stress. It is primarily required by manufacturers in the plastics, coatings, and specialty chemical industries for producing advanced stabilizer systems.

Application

• Primary intermediate for the synthesis of high-performance hindered amine light stabilizers (HALS).
• Used in the formulation of UV stabilizers for polyolefins, including polyethylene and polypropylene films and fibers.
• Key component in light-stabilizing systems for automotive coatings and industrial paints to prevent gloss loss and chalking.
• Employed in the stabilization of engineering plastics such as ABS, polyamide, and polycarbonate against photo-oxidation.
• Utilized in the production of additives for agricultural films to extend service life under sunlight.
• Applied in the development of stabilization packages for adhesives and sealants.

Basic Information

Product Name	1,2,3,6-Tetrahydro-4-Methyl-n-(2,2,6,6-Tetramethyl-4-Piperidyl)Phthalimide
CAS No.	79720-23-3
Molecular Formula	C19H30N2O2
Molecular Weight	318.46 g/mol
Synonyms	4-Methyl-1,2,3,6-tetrahydro-N-(2,2,6,6-tetramethyl-4-piperidinyl)phthalimide; N-(2,2,6,6-Tetramethyl-4-piperidyl)-4-methyl-1,2,3,6-tetrahydrophthalimide; 4-Methyl-THPT; HALS Intermediate 1; UV-123; LS-123; Tetramethylpiperidyl Phthalimide Derivative
EINECS	Contact for details

Quality Control

Our production of 1,2,3,6-Tetrahydro-4-Methyl-n-(2,2,6,6-Tetramethyl-4-Piperidyl)Phthalimide adheres to a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC and GC analysis, to ensure high chemical purity and consistency. Certificates of Analysis (COA) detailing identity, assay, and impurity profiles are provided with each shipment to guarantee compliance with your technical requirements.

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 and should be stored away from direct light exposure.

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%
Related Substances (HPLC)	Total impurities ≤ 1.0%

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