Description

Kp 136 CAS NO 76239-32-2 is a high-purity chemical intermediate, also known as 2,2,6,6-Tetramethyl-4-piperidinol, valued for its role as a precursor to hindered amine light stabilizers (HALS). This compound is critical for enhancing the durability and longevity of polymers by effectively scavenging free radicals generated during photo-oxidation. It is primarily needed by manufacturers in the plastics, coatings, and specialty chemical industries seeking to produce high-performance, UV-resistant materials.

Application

• Primary precursor in the synthesis of Hindered Amine Light Stabilizers (HALS) for plastics and polymers.
• Used in the formulation of UV stabilizers for automotive coatings, agricultural films, and construction materials.
• Intermediate for pharmaceutical and agrochemical active ingredients requiring a sterically hindered amine moiety.
• Component in the production of antioxidants for synthetic fibers and engineering plastics.
• Research and development of novel polymer additives and specialty chemicals.
• Used in analytical chemistry as a reference standard or reagent.

Basic Information

Product Name	Kp 136
CAS No.	76239-32-2
Molecular Formula	C9H19NO
Molecular Weight	157.25 g/mol
Synonyms	2,2,6,6-Tetramethyl-4-piperidinol; 4-Hydroxy-2,2,6,6-tetramethylpiperidine; Timuvin 770 intermediate; Tetramethylpiperidinol; 4-Piperidinol, 2,2,6,6-tetramethyl-; Nor-HALS; Light Stabilizer 770 Intermediate
EINECS	Contact for details

Quality Control

Our production of Kp 136 adheres to stringent quality management protocols. Every batch is tested to ensure high chemical purity and consistency, meeting the exacting standards required for advanced polymer additive synthesis. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to ensure full traceability and compliance for our global B2B partners.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.5%
Melting Point	128 - 132 °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.