Description

8-Benzyl-7,7,9,9-Tetramethyl-3-Octyl-1,3,8-Triazaspiro[4.5]Decane-2,4-Dione is a specialized organic compound belonging to the class of hindered amine light stabilizers (HALS) and related derivatives. This compound is valued for its role as a high-performance additive, providing exceptional protection against thermal and photo-oxidative degradation in polymeric materials. It is primarily sought by manufacturers in the plastics, coatings, and specialty chemical industries who require advanced stabilization solutions to extend product lifespan and maintain performance under harsh environmental conditions.

Application

• Polymer Stabilizer: Acts as a highly effective hindered amine light stabilizer (HALS) in polyolefins (PP, PE), engineering plastics, and synthetic fibers to prevent UV-induced degradation and embrittlement.
• Coatings & Paints Additive: Incorporated into automotive, industrial, and architectural coatings to enhance weatherability, prevent gloss loss, chalking, and color fading.
• Adhesive & Sealant Formulations: Used to improve the long-term thermal stability and durability of hot-melt, pressure-sensitive, and structural adhesives.
• Synthetic Rubber Protection: Employed in the stabilization of elastomers against ozone and oxygen attack, extending the service life of rubber products.
• Masterbatch Production: A key active component in concentrate form for easy dispersion and uniform stabilization in final polymer products.
• Advanced Material Research: Serves as a building block or intermediate in the synthesis of novel stabilizers and functional additives for high-value applications.

Basic Information

Product Name	8-Benzyl-7,7,9,9-Tetramethyl-3-Octyl-1,3,8-Triazaspiro[4.5]Decane-2,4-Dione
CAS No.	40074-68-8
Molecular Formula	C29H47N3O2
Molecular Weight	469.71 g/mol
Synonyms	Tinuvin 440; 1,3,8-Triazaspiro[4.5]decane-2,4-dione, 8-benzyl-7,7,9,9-tetramethyl-3-octyl-; Bis(1,2,2,6,6-pentamethyl-4-piperidyl) sebacate derivative; HALS-440; Light Stabilizer 440; UV-440; Benzyl-substituted triazaspirodecanedione; 3-Octyl-8-benzyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione
EINECS	Contact for details

Quality Control

Our production of 8-Benzyl-7,7,9,9-Tetramethyl-3-Octyl-1,3,8-Triazaspiro[4.5]Decane-2,4-Dione adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed against comprehensive specifications using advanced techniques like HPLC, GC, and NMR. A Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment, ensuring full traceability and compliance with relevant industry standards for polymer additives.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials. Under these conditions, the product remains stable for extended periods.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 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.