Description

Hexahydro-2,6-Bis(2,2,6,6-Tetramethyl-4-Piperidinyl)-1H,4H,5H,8H-2,3A,4A,6,7A,8A-Hexaazacyclopenta[Def]Fluorene-4,8-Dione is a high-performance hindered amine light stabilizer (HALS) compound, recognized for its exceptional efficacy in protecting polymers from UV-induced degradation. This advanced additive is crucial for extending the service life and maintaining the mechanical properties and color stability of sensitive materials exposed to harsh environmental conditions. It is primarily sought by manufacturers in the plastics, coatings, and specialty polymer industries requiring superior long-term weatherability for their products.

Application

• Polymer Stabilization: As a highly effective HALS, it is extensively used in polyolefins (PP, PE), engineering plastics, and thermoplastic elastomers to prevent photo-oxidation and thermal degradation.
• Automotive Components: Protects interior and exterior plastic parts, such as bumpers, dashboards, and trim, from fading, cracking, and loss of gloss due to UV exposure.
• Industrial and Agricultural Films: Enhances the durability and lifespan of greenhouse films, mulch films, and geomembranes by stabilizing them against sunlight.
• Coatings and Paints: Incorporated into automotive, industrial, and architectural coatings to maintain color, gloss, and film integrity under outdoor exposure.
• Fibers and Tapes: Used in synthetic fibers and adhesive tapes to prevent strength loss and discoloration caused by UV radiation.
• Masterbatch Production: A key active component in UV-stabilizer concentrates and additive masterbatches for easy dispersion in polymer processing.

Basic Information

Item	Details
Product Name	Hexahydro-2,6-Bis(2,2,6,6-Tetramethyl-4-Piperidinyl)-1H,4H,5H,8H-2,3A,4A,6,7A,8A-Hexaazacyclopenta[Def]Fluorene-4,8-Dione
CAS No.	109423-00-9
Molecular Formula	C30H48N8O2
Molecular Weight	552.77 g/mol
Synonyms	HALS 109423-00-9; Bis(2,2,6,6-tetramethyl-4-piperidinyl)-hexahydro-2,3a,4a,6,7a,8a-hexaazacyclopenta[def]fluorene-4,8-dione; UV-3346; Light Stabilizer 3346; 1H,4H,5H,8H-2,3a,4a,6,7a,8a-Hexaazacyclopenta[def]fluorene-4,8-dione, hexahydro-2,6-bis(2,2,6,6-tetramethyl-4-piperidinyl)-; High molecular weight HALS; Polymeric hindered amine light stabilizer
EINECS	Contact for details

Quality Control

Our production of Hexahydro-2,6-Bis(2,2,6,6-Tetramethyl-4-Piperidinyl)-1H,4H,5H,8H-2,3A,4A,6,7A,8A-Hexaazacyclopenta[Def]Fluorene-4,8-Dione adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. The material is manufactured and tested to meet the high-purity standards required for polymer additive applications. Comprehensive Certificates of Analysis (COA) documenting identity, purity, and key physical parameters are provided with each shipment to support your quality assurance processes.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after initial use to prevent moisture absorption. For long-term storage, consider using an inert atmosphere to mitigate potential oxidation.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Ash Content	≤ 0.1%

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