Description

2,2,6,6-Tetramethyl-4-Piperidinol CAS NO 2403-88-5 is a versatile hindered amine intermediate of significant commercial importance. Its piperidinol structure makes it a crucial building block for synthesizing high-performance light stabilizers and antioxidants. This compound is essential for manufacturers in the polymer, agrochemical, and pharmaceutical industries seeking to enhance product durability and longevity.

Application

• Hindered Amine Light Stabilizer (HALS) Synthesis: Primary intermediate for producing advanced UV stabilizers used in plastics, coatings, and films to prevent photodegradation.
• Polymer Additives: Key precursor for antioxidants and stabilizers that protect polymers like polypropylene and polyethylene from thermal and oxidative degradation.
• Agrochemical Intermediates: Used in the synthesis of certain pesticides and plant growth regulators, leveraging its hindered amine functionality.
• Pharmaceutical Synthesis: Serves as a building block for active pharmaceutical ingredients (APIs) and other fine chemicals requiring a sterically hindered piperidine moiety.
• Organic Synthesis & Research: Valuable reagent in academic and industrial R&D for constructing complex nitrogen-containing molecules.

Basic Information

Product Name	2,2,6,6-Tetramethyl-4-Piperidinol
CAS No.	2403-88-5
Molecular Formula	C9H19NO
Molecular Weight	157.25 g/mol
Synonyms	4-Hydroxy-2,2,6,6-tetramethylpiperidine; 2,2,6,6-Tetramethyl-4-piperidinol; 4-Piperidinol, 2,2,6,6-tetramethyl-; TIMTEC-BB SBB008336; 4-Hydroxy-TEMPO precursor; NSC 403697; 2,2,6,6-Tetramethylpiperidin-4-ol
EINECS	219-290-9

Quality Control

Our 2,2,6,6-Tetramethyl-4-Piperidinol is manufactured under strict quality management systems. We provide material with standard purity grades suitable for industrial synthesis, including HALS production. Every batch is tested to ensure consistent identity, purity, and performance. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical characteristics is available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area 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 to structure
Assay (HPLC)	≥ 98.0%
Melting Point	128 - 132 °C
Loss on Drying	≤ 1.0 %

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