Description

4-Hydroxy-2,2,6,6-Tetramethyl-4-Piperidinecarboxylic Acid Methyl Ester is a high-purity hindered amine derivative that serves as a critical intermediate and functional additive. Its molecular structure provides excellent stability and radical scavenging properties, making it a valuable component for enhancing product performance and longevity. This compound is essential for manufacturers in the polymer, agrochemical, and specialty chemical industries seeking to improve the light stability and durability of their formulations.

Application

• Polymer Stabilizer Intermediate: A key precursor in the synthesis of high-performance hindered amine light stabilizers (HALS) for plastics, coatings, and synthetic fibers.
• Agrochemical Synthesis: Used as a building block for creating advanced active ingredients and formulation additives with enhanced environmental stability.
• Pharmaceutical Intermediate: Employed in the research and development of novel drug candidates, particularly those requiring a stable piperidine-based framework.
• Antioxidant Synergist: Functions alongside primary antioxidants to provide superior protection against thermal and oxidative degradation in various chemical systems.
• UV Absorber Component: Incorporated into formulations designed to protect materials from ultraviolet radiation damage.
• Research & Development: Serves as a standard and reagent in organic synthesis and material science research for developing new stabilizers and functional materials.

Basic Information

Product Name	4-Hydroxy-2,2,6,6-Tetramethyl-4-Piperidinecarboxylic Acid Methyl Ester
CAS No.	66587-05-1
Molecular Formula	C11H21NO3
Molecular Weight	215.29 g/mol
Synonyms	Methyl 4-Hydroxy-2,2,6,6-tetramethylpiperidine-4-carboxylate; 4-Carbomethoxy-2,2,6,6-tetramethyl-4-hydroxypiperidine; 4-Hydroxy-TEMPO methyl ester; 4-Methoxycarbonyl-2,2,6,6-tetramethyl-4-hydroxypiperidine; HALS Intermediate; 4-Hydroxy-2,2,6,6-tetramethylpiperidine-4-carboxylic acid methyl ester; 4-Hydroxy-TMP Methyl Ester
EINECS	Contact for details

Quality Control

Our production of 4-Hydroxy-2,2,6,6-Tetramethyl-4-Piperidinecarboxylic Acid Methyl Ester adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistent chemical identity. Certificates of Analysis (COA) documenting all critical parameters are provided with each shipment. We support compliance with global regulatory frameworks, 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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	95 - 100 °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.