Description

1,2-Dihydro-2,2,4-Treimethyl-6-Phenylquinoline is a specialized quinoline derivative with significant utility as a high-performance antioxidant and stabilizer. Its molecular structure makes it particularly effective in protecting polymers and other sensitive materials from oxidative degradation. This compound is essential for manufacturers in the polymer, rubber, and specialty chemical industries seeking to enhance the longevity and stability of their products under demanding conditions.

Application

• Polymer Stabilizer: A key antioxidant additive for polyolefins (e.g., polyethylene, polypropylene) to prevent thermal and oxidative degradation during processing and service life.
• Rubber Industry: Used as an antiozonant and antioxidant in synthetic rubber formulations, including SBR and NBR, to extend product durability.
• Fuel & Lubricant Additive: Functions as a stabilizer in fuels and industrial lubricants to inhibit gum formation and oxidative breakdown.
• Adhesive & Sealant Formulations: Enhances the shelf-life and performance stability of polyurethane and other polymer-based adhesives.
• Chemical Intermediate: Serves as a precursor in the synthesis of more complex quinoline-based compounds for pharmaceutical and agrochemical research.
• Plasticizer Stabilizer: Protects phthalate and other ester-based plasticizers from color development and degradation.

Basic Information

Product Name	1,2-Dihydro-2,2,4-Treimethyl-6-Phenylquinoline
CAS No.	3562-69-4
Molecular Formula	C20H21N
Molecular Weight	275.39 g/mol
Synonyms	6-Phenyl-2,2,4-trimethyl-1,2-dihydroquinoline; TMQ; Polymerized 2,2,4-Trimethyl-1,2-dihydroquinoline; Antiozonant TMQ; Flectol TMQ; Vulkanox HS/LG; Antioxidant RD; 1,2-Dihydro-2,2,4-trimethyl-6-phenylquinoline; 2,2,4-Trimethyl-6-phenyl-1,2-dihydroquinoline
EINECS	222-635-4

Quality Control

Our production of 1,2-Dihydro-2,2,4-Treimethyl-6-Phenylquinoline adheres to stringent quality management protocols. Every batch is tested against precise internal specifications to ensure high purity, consistent performance, and reliable supply. A comprehensive Certificate of Analysis (COA), detailing assay, impurity profile, and physical properties, is provided with each shipment to support your quality assurance processes.

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 easily oxidized and should be kept under an inert atmosphere (e.g., nitrogen) for long-term storage to maintain efficacy. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Light yellow to tan powder or flakes
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	80 - 85 °C
Loss on Drying	≤ 0.5%
Ash Content	≤ 0.1%

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