Description

Hydroxyethyl Tetramethylpiperidinol CAS NO 52722-86-8 is a high-purity, hindered amine light stabilizer (HALS) intermediate, valued for its exceptional performance in protecting polymers from UV degradation. This compound is critical for formulators seeking to enhance the durability and longevity of sensitive materials exposed to harsh environmental conditions. It is primarily required by manufacturers in the polymer, coatings, and specialty chemical industries for producing advanced stabilizer systems.

Application

• As a key synthetic intermediate for high-performance Hindered Amine Light Stabilizers (HALS).
• UV protection additive in polyolefins (PP, PE), engineering plastics, and synthetic fibers.
• Stabilizer component in automotive coatings, industrial paints, and wood finishes to prevent gloss loss and chalking.
• Enhancing weatherability in agricultural films and greenhouse covers.
• Used in the formulation of adhesives and sealants to maintain elasticity and performance.
• Stabilizer for polyurethane (PU) foams and other elastomers.

Basic Information

Product Name	Hydroxyethyl Tetramethylpiperidinol
CAS No.	52722-86-8
Molecular Formula	C11H23NO2
Molecular Weight	201.31 g/mol
Synonyms	1-Hydroxyethyl-2,2,6,6-tetramethyl-4-piperidinol; 4-Hydroxy-2,2,6,6-tetramethylpiperidine-1-ethanol; HALS Intermediate; 1-(2-Hydroxyethyl)-2,2,6,6-tetramethyl-4-piperidinol; Light Stabilizer 770 Intermediate; N-Hydroxyethyl-2,2,6,6-tetramethyl-4-piperidinol; Timwin 770 Intermediate; Bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate precursor
EINECS	258-119-4

Quality Control

Our Hydroxyethyl Tetramethylpiperidinol is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC and GC analysis, to ensure high purity and consistency. Certificates of Analysis (COA) detailing specific batch results are provided and traceability is maintained. Production adheres to ISO 9001 standards, and the product meets global regulatory requirements including REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed in a dry environment to prevent absorption of water. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.5%
Melting Point	70 - 74 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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