Description

Calcium 2,2'-Methylenebis[4-(1,1,3,3-Tetramethylbutyl)Phenolate] CAS NO 68527-62-8 is a high-performance, sterically hindered phenolic antioxidant in its calcium salt form, offering enhanced thermal stability and compatibility in demanding environments. Its primary value lies in providing superior long-term oxidative protection for polymers and hydrocarbon-based fluids, preventing degradation and extending service life. This product is essential for formulators and manufacturers in the plastics, rubber, lubricant, and fuel industries seeking robust stabilization solutions.

Application

• Primary antioxidant for polyolefins (PP, PE) and engineering plastics to prevent thermal-oxidative degradation during processing and end-use.
• Stabilizer for synthetic lubricants and industrial oils, enhancing their resistance to oxidation and viscosity breakdown at high operating temperatures.
• Additive in fuel and gasoline formulations to inhibit gum formation and improve storage stability.
• Protective agent in elastomers and rubber compounds, including SBR and EPDM, to maintain physical properties.
• Stabilizing component in hot-melt adhesives and sealants to prevent degradation during application.
• Used in paraffin wax and other hydrocarbon-based products to prevent color development and maintain quality.

Basic Information

Product Name	Calcium 2,2'-Methylenebis[4-(1,1,3,3-Tetramethylbutyl)Phenolate]
CAS No.	68527-62-8
Molecular Formula	C54H84CaO4
Molecular Weight	837.32 g/mol
Synonyms	Calcium 2,2'-Methylenebis(4,6-di-tert-butylphenolate); Calcium 2,2'-Methylenebis(4,6-di-tert-butylphenol); Calcium bis[2,2'-methylenebis(4,6-di-tert-butylphenolate)]; Antioxidant 1425; Irganox 1425; Phenol, 2,2'-methylenebis[4-(1,1,3,3-tetramethylbutyl)-, calcium salt; Calcium methylenebis(4,6-di-tert-butylphenolate); CAS 68527-62-8
EINECS	Contact for details

Quality Control

Our production of Calcium 2,2'-Methylenebis[4-(1,1,3,3-Tetramethylbutyl)Phenolate] adheres to strict quality management protocols. Every batch undergoes rigorous analytical testing to ensure consistent purity, performance, and compliance with industry specifications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided and available upon request to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong acids and incompatible organic solvents. The container must be kept tightly closed to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Calcium Content	4.5 - 5.0 %
Loss on Drying	≤ 0.5 %
Ash Content	≤ 0.1 %
Melting Point	245 - 255 °C

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