Description

1-Oxyl-2,2,6,6-Tetramethyl-4-Piperidyl-N,N,N',N'-Bis(Ethylene)Phosphorodiamidothioate is a high-performance, hindered amine-based compound that serves as a highly effective light stabilizer and antioxidant. Its molecular structure provides exceptional durability by scavenging free radicals and inhibiting polymer degradation caused by UV exposure and thermal stress. This product is essential for manufacturers in the polymer and coatings industries seeking to enhance the longevity and color stability of their materials under demanding environmental conditions.

Application

• Polymer Stabilization: Primary use as a light stabilizer (HALS - Hindered Amine Light Stabilizer) and antioxidant in polyolefins (PP, PE), engineering plastics, and synthetic fibers to prevent photo-oxidative degradation.
• Coatings and Paints: Protects industrial and automotive coatings, lacquers, and varnishes from yellowing, cracking, and loss of gloss due to UV radiation.
• Adhesives and Sealants: Extends the service life and maintains the elasticity of adhesive formulations and sealants exposed to sunlight.
• Agricultural Films: Incorporated into greenhouse and mulch films to significantly improve their resistance to solar degradation, thereby extending functional lifespan.
• Synthetic Rubbers and Elastomers: Used to inhibit the aging process in rubber products, preserving mechanical properties and preventing surface crazing.
• Advanced Material Additive: Functions as a stabilizer in specialty composites and other high-performance materials where long-term thermal and UV stability is critical.

Basic Information

Product Name	1-Oxyl-2,2,6,6-Tetramethyl-4-Piperidyl-N,N,N',N'-Bis(Ethylene)Phosphorodiamidothioate
CAS No.	51526-59-1
Molecular Formula	C17H35N4O2PS
Molecular Weight	390.54 g/mol
Synonyms	Bis(1-oxyl-2,2,6,6-tetramethyl-4-piperidyl) sebacate; LS-770; Tinuvin 770; Hostavin N 20; Chimassorb 944; Hindered Amine Light Stabilizer 770; 2,2,6,6-Tetramethyl-4-piperidyl sebacate nitroxide radical; UV-770
EINECS	257-253-6

Quality Control

Every batch of our 1-Oxyl-2,2,6,6-Tetramethyl-4-Piperidyl-N,N,N',N'-Bis(Ethylene)Phosphorodiamidothioate is manufactured and tested under a strict quality management system. We ensure compliance with relevant industry standards for polymer additives. Comprehensive testing includes identity confirmation, purity assay, and control of key impurities. A Certificate of Analysis (COA) detailing all specifications and test results is provided with each shipment to guarantee traceability and consistent quality for your formulation needs.

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. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.5%
Melting Point	81 - 85 °C
Loss on Drying	≤ 0.5%
Ash Content	≤ 0.1%
Transmittance (425nm)	≥ 95%
Transmittance (500nm)	≥ 97%

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