Description

4-Hydroxy-1-(2-Hydroxyethyl)-2,2,6,6-Tetramethylpiperidine is a high-purity hindered amine light stabilizer (HALS) intermediate and a versatile chemical building block. Its molecular structure provides excellent performance as a precursor for advanced polymer additives, particularly in applications requiring long-term thermal and UV stability. This compound is essential for manufacturers in the polymer, coatings, and specialty chemical industries seeking to enhance the durability and lifespan of their products.

Application

• Polymer Additive Synthesis: A key intermediate for manufacturing high-performance hindered amine light stabilizers (HALS) used in plastics and coatings.
• UV Stabilization: Imparts exceptional resistance to photodegradation in polyolefins (PP, PE), engineering plastics, and automotive coatings.
• Antioxidant Synergist: Works in conjunction with primary antioxidants to provide comprehensive thermal-oxidative stabilization for polymers.
• Advanced Material Research: Serves as a functional building block in the development of novel stabilizers, pharmaceutical intermediates, and specialty surfactants.
• Coatings & Inks: Enhances the weatherability and color retention of industrial, automotive, and architectural coatings and inks.
• Adhesives & Sealants: Improves the long-term performance and prevents embrittlement of adhesive and sealant formulations exposed to outdoor conditions.

Basic Information

Product Name	4-Hydroxy-1-(2-Hydroxyethyl)-2,2,6,6-Tetramethylpiperidine
CAS No.	62421-70-9
Molecular Formula	C11H23NO2
Molecular Weight	201.31 g/mol
Synonyms	1-(2-Hydroxyethyl)-4-hydroxy-2,2,6,6-tetramethylpiperidine; 4-Hydroxy-2,2,6,6-tetramethyl-1-piperidineethanol; HALS Intermediate; Tinuvin 770 Intermediate; Light Stabilizer 770 Intermediate; Bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate precursor; NOR-HALS Intermediate; 2,2,6,6-Tetramethyl-4-piperidinol, 1-(2-hydroxyethyl)- derivative
EINECS	263-536-1

Quality Control

Our 4-Hydroxy-1-(2-Hydroxyethyl)-2,2,6,6-Tetramethylpiperidine is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistent performance as a polymer additive intermediate. Certificates of Analysis (COA) documenting identity, assay, and impurity profiles are provided to guarantee compliance with your technical specifications.

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 product is hygroscopic (moisture-sensitive); keep the container tightly sealed to minimize exposure to atmospheric humidity.

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

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