Description

Bis(2,2,6,6-Tetramethyl-4-Piperidinecarboxylic Acid)1,4-Cyclohexanediylbis(Methylene) Ester is a high-performance hindered amine light stabilizer (HALS) designed to protect polymers from degradation caused by UV radiation and thermal oxidation. This compound is critical for extending the service life and maintaining the mechanical properties and color stability of advanced polymer formulations. It is primarily utilized by manufacturers in the plastics, coatings, and synthetic fiber industries seeking reliable, long-term protection for their products in demanding outdoor and high-temperature applications.

Application

• Primary light stabilizer in polyolefins (PP, PE) for automotive parts, agricultural films, and outdoor furniture.
• Essential additive in engineering plastics (polyamides, polyesters) for under-the-hood automotive components and electrical connectors.
• Key component in industrial and automotive coatings to prevent gloss loss, chalking, and cracking.
• Stabilizer for synthetic fibers and textiles exposed to sunlight, such as outdoor fabrics and geotextiles.
• Used in adhesives and sealants to enhance durability under UV exposure.
• Additive in masterbatch production for consistent and easy dispersion of stabilizers into polymers.

Basic Information

Product Name	Bis(2,2,6,6-Tetramethyl-4-Piperidinecarboxylic Acid)1,4-Cyclohexanediylbis(Methylene) Ester
CAS No.	70851-59-1
Molecular Formula	C34H60N2O4
Molecular Weight	560.86 g/mol
Synonyms	1,4-Cyclohexanediylbis(methylene) bis(2,2,6,6-tetramethyl-4-piperidinecarboxylate); Bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate (related structure, common confusion); Hostavin 3058; Tinuvin 770; LS-770; UV-770; HALS-770; Bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate (common trade name reference)
EINECS	Contact for details

Quality Control

Our production of Bis(2,2,6,6-Tetramethyl-4-Piperidinecarboxylic Acid)1,4-Cyclohexanediylbis(Methylene) Ester adheres to stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes rigorous analytical testing, including HPLC for assay and related substances, to meet exacting customer and industry specifications. Certificates of Analysis (COA) documenting full compliance are provided with every shipment.

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 (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.