Description

Methyl Bis[(1,2,3,4,4A,5,8,8A-Octahydro-1,4:5,8-Dimethanonaphthalen-2-Yl)Methyl] Phosphite is a specialized organophosphorus compound that serves as a high-performance stabilizer and antioxidant in demanding polymer applications. Its molecular structure is engineered to provide exceptional protection against thermal and oxidative degradation, thereby extending the service life of sensitive materials. This product is essential for formulators and manufacturers in the plastics and specialty chemical industries seeking to enhance the durability and performance of their products under harsh conditions.

Application

• Primary stabilizer and antioxidant for high-temperature engineering plastics and specialty polymers.
• Critical additive in the production of synthetic fibers and films to prevent chain scission and discoloration during processing.
• Used in elastomer and rubber formulations to improve resistance to heat aging and environmental stress cracking.
• Employed as a synergistic co-stabilizer in combination with primary antioxidants to enhance overall stabilization packages.
• Applied in adhesive and sealant chemistries where long-term thermal stability is required.
• Utilized in lubricant and grease formulations as an antioxidant to prevent viscosity increase and sludge formation.

Basic Information

Item	Detail
Product Name	Methyl Bis[(1,2,3,4,4A,5,8,8A-Octahydro-1,4:5,8-Dimethanonaphthalen-2-Yl)Methyl] Phosphite
CAS No.	70766-50-6
Molecular Formula	C31H44O3P
Molecular Weight	504.66 g/mol
Synonyms	Methylenebis(dinorbornyl) methyl phosphite; Phosphorous acid, methylenebis(dinorbornyl) methyl ester; Dinorbornyl phosphite derivative; Antioxidant 70766-50-6; Methyl dinorbornylphosphite; Polymer stabilizer 70766-50-6; Methylenebis(octahydro-1,4:5,8-dimethanonaphthalen-2-ylmethyl) methyl phosphite; Methyl bis(dinorbornylmethyl) phosphite
EINECS	Contact for details

Quality Control

Every batch of our Methyl Bis[(1,2,3,4,4A,5,8,8A-Octahydro-1,4:5,8-Dimethanonaphthalen-2-Yl)Methyl] Phosphite is manufactured and tested under a strict quality management system. We ensure compliance with relevant industry standards for polymer additives. Comprehensive testing, including assay and impurity profile analysis, is performed to guarantee consistent purity and performance. A Certificate of Analysis (COA) detailing all specifications is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is easily oxidized and must be stored under an inert atmosphere (e.g., nitrogen or argon) to maintain efficacy. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm

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