Description

Polymerizedn-Nitroso-2,2,4-Trimethyl-1,2-Dihydroquinoline is a polymerized nitroso derivative of 2,2,4-trimethyl-1,2-dihydroquinoline, primarily utilized as a high-performance antioxidant and antiozonant in polymer systems. This compound is valued for its ability to provide long-term protection against thermal-oxidative degradation and ozone attack, thereby significantly extending the service life of sensitive materials. It is a critical additive for manufacturers in the rubber and elastomer industries, particularly for products requiring enhanced durability under harsh environmental conditions.

Application

• Primary antioxidant and antiozonant in synthetic rubbers such as Nitrile Rubber (NBR), Styrene-Butadiene Rubber (SBR), and Polybutadiene.
• Stabilizer for polyolefins and other plastics to prevent chain scission and discoloration during high-temperature processing and long-term use.
• Protective agent in adhesives, sealants, and coatings to improve weatherability and resistance to ozone cracking.
• Additive in automotive components like hoses, belts, and gaskets to ensure performance under engine heat and atmospheric ozone.
• Used in the production of wire and cable insulation to maintain dielectric properties and mechanical integrity.
• Formulation component for industrial rubber goods, including conveyor belts, rolls, and vibration dampeners.

Basic Information

Product Name	Polymerizedn-Nitroso-2,2,4-Trimethyl-1,2-Dihydroquinoline
CAS No.	29929-77-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polymerized N-Nitroso-2,2,4-Trimethyl-1,2-Dihydroquinoline; Poly-N-Nitroso-TMQ; Antiozonant DNPD; Antioxidant DNPD; Nitroso Polymer of TMQ; 1,2-Dihydro-2,2,4-trimethylquinoline, nitroso polymer; Nitrosated polymer of 2,2,4-trimethyl-1,2-dihydroquinoline
EINECS	Contact for details

Quality Control

Our Polymerizedn-Nitroso-2,2,4-Trimethyl-1,2-Dihydroquinoline is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent performance, including assay, identification, and impurity profiling. Certificates of Analysis (COA) detailing all specifications and test results are available upon request to support your quality assurance protocols.

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). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	Light yellow to brown powder or flakes
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Ash Content	≤ 0.5%

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