Description

2,7-Bis(1,1,3,3-Tetramethylbutyl)-10H-Phenothiazine is a high-performance, sterically hindered phenothiazine derivative, valued for its exceptional antioxidant and radical scavenging properties. This compound is critical for stabilizing sensitive materials against oxidative degradation, thereby extending product shelf life and enhancing performance reliability. It is primarily utilized by manufacturers in the polymer, lubricant, and specialty chemical industries seeking robust stabilization solutions.

Application

• Polymer Stabilizer: Acts as a highly effective antioxidant and light stabilizer in polyolefins (e.g., polyethylene, polypropylene), engineering plastics, and synthetic rubbers to prevent thermal and oxidative degradation during processing and end-use.
• Lubricant & Fuel Additive: Used as an antioxidant additive in synthetic lubricants, greases, and industrial oils to inhibit sludge formation, viscosity increase, and acid generation, thereby extending service intervals.
• Specialty Chemical Intermediate: Serves as a key building block for synthesizing more complex phenothiazine-based antioxidants, pharmaceuticals, and dyes.
• Adhesive & Sealant Formulations: Incorporated to prevent premature curing and maintain the integrity of polyurethane and other reactive adhesive systems by scavenging free radicals.
• Photographic & Imaging Chemicals: Functions as a stabilizer in certain photographic developers and other light-sensitive chemical formulations.
• Research & Development: Employed in academic and industrial R&D as a model compound for studying radical chemistry and developing new stabilization technologies.

Basic Information

Product Name	2,7-Bis(1,1,3,3-Tetramethylbutyl)-10H-Phenothiazine
CAS No.	53915-72-3
Molecular Formula	C30H45NS
Molecular Weight	451.75 g/mol
Synonyms	2,7-Di(1,1,3,3-tetramethylbutyl)phenothiazine; Phenothiazine, 2,7-bis(1,1,3,3-tetramethylbutyl)-; 2,7-Bis(2,4,4-trimethylpentan-2-yl)-10H-phenothiazine; Irganox 565; Antioxidant 565; Bis(1,1,3,3-tetramethylbutyl)phenothiazine; TMQ derivative; High molecular weight phenothiazine antioxidant.
EINECS	Contact for details

Quality Control

Our 2,7-Bis(1,1,3,3-Tetramethylbutyl)-10H-Phenothiazine is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. Certificates of Analysis (COA) documenting key parameters are available for every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	95 - 105 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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