Description

Octahydro-N,N'-Bis(2,2,6,6-Tetramethyl-4-Piperidyl)-4,7-Methano-1H-Indene-5,-Dimethylamine is a high-performance hindered amine light stabilizer (HALS) and antioxidant, designed to protect polymers from degradation caused by UV radiation and thermal oxidation. Its unique chemical structure provides exceptional long-term stability, making it a critical additive for extending the service life of plastics and coatings in demanding environments. This compound is essential for manufacturers in the polymer, automotive, and construction industries seeking to enhance the durability and color retention of their products.

Application

• Primary use as a hindered amine light stabilizer (HALS) in polyolefins such as polypropylene (PP) and polyethylene (PE).
• Enhancing the UV resistance and weatherability of automotive exterior parts, including bumpers, trims, and under-the-hood components.
• Stabilizing engineering plastics and thermoplastic elastomers (TPEs) against thermal and oxidative degradation during processing and end-use.
• Protecting industrial and agricultural films from embrittlement and loss of mechanical properties due to prolonged sun exposure.
• Improving the color stability and longevity of paints, coatings, and sealants for architectural and industrial applications.
• Used in fiber and yarn production to prevent degradation from heat and light during manufacturing and in outdoor textiles.
• Formulation of masterbatches and compound concentrates for efficient dispersion in various polymer matrices.

Basic Information

Product Name	Octahydro-N,N'-Bis(2,2,6,6-Tetramethyl-4-Piperidyl)-4,7-Methano-1H-Indene-5,-Dimethylamine
CAS No.	83434-02-0
Molecular Formula	C₃₀H₅₆N₄
Molecular Weight	472.80 g/mol
Synonyms	Bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate derivative; HALS 770; Light Stabilizer 770; UV-770; Tinuvin 770; Chimassorb 944 (related oligomeric HALS); Bis(1,2,2,6,6-pentamethyl-4-piperidyl) sebacate (common misnomer); N,N'-Bis(2,2,6,6-tetramethyl-4-piperidyl)-1,6-hexanediamine polymer (related structure)
EINECS	Contact for details

Quality Control

Our production of this hindered amine light stabilizer adheres to strict quality management systems, ensuring batch-to-batch consistency and high purity. The material is characterized and tested against rigorous internal specifications, which typically include identity confirmation by FT-IR, purity assay by HPLC, and control of key impurities. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee compliance with your technical requirements.

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 has excellent shelf stability.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	80 - 85 °C
Loss on Drying	≤ 0.5%
Ash Content	≤ 0.1%
Transmittance (425 nm)	≥ 95%
Transmittance (500 nm)	≥ 97%

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