Description

3,7-Bis(1-Methyl-1-Phenylethyl)-10H-Phenothiazine is a sterically hindered phenothiazine derivative, a chemical class renowned for its antioxidant and radical scavenging properties. This compound matters as a highly effective stabilizer and inhibitor, preventing premature degradation in sensitive formulations and processes. It is primarily needed by manufacturers in the polymer, lubricant, and specialty chemical industries seeking to enhance the thermal and oxidative stability of their products.

Application

• Primary antioxidant and radical scavenger in polyolefins (e.g., polyethylene, polypropylene) and other polymers.
• Stabilizer for lubricants, greases, and synthetic oils to prevent oxidation and viscosity breakdown.
• Intermediate in the synthesis of advanced materials, including dyes, pigments, and pharmaceutical agents.
• Additive in fuel and petrochemical products to improve shelf-life and performance.
• Component in research and development for studying electron transfer processes and photochemical reactions.
• Stabilizing agent for adhesives, sealants, and elastomers against heat and light-induced aging.

Basic Information

Product Name	3,7-Bis(1-Methyl-1-Phenylethyl)-10H-Phenothiazine
CAS No.	38201-66-0
Molecular Formula	C32H33NS
Molecular Weight	463.68 g/mol
Synonyms	3,7-Bis(α,α-dimethylbenzyl)phenothiazine; Phenothiazine, 3,7-bis(1-methyl-1-phenylethyl)-; 3,7-Di(1-methyl-1-phenylethyl)phenothiazine; 3,7-Di-tert-butylphenothiazine (common name based on substitution pattern); Antioxidant 3,7-BMPP; BMPP; Bis(α,α-dimethylbenzyl)phenothiazine; CAS 38201-66-0
EINECS	Contact for details

Quality Control

Our 3,7-Bis(1-Methyl-1-Phenylethyl)-10H-Phenothiazine is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. Certificates of Analysis (COA) documenting all critical quality parameters are available upon request.

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 nature as an easily oxidized compound, prolonged storage under an inert atmosphere (e.g., nitrogen) is recommended for optimal long-term stability. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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