Description

Methyl-3-(3-Tert.-Butyl-4-Hydroxy-5-Methylphenyl)Propionat is a high-purity synthetic phenolic antioxidant intermediate. This compound is critical for imparting stability and extending the service life of polymers and other organic materials susceptible to oxidative degradation. It is primarily required by manufacturers in the polymer, rubber, lubricant, and specialty chemical industries seeking to enhance product durability.

Application

• Primary intermediate for the synthesis of high-performance phenolic antioxidants like Irganox 1076.
• Stabilizer additive in polyolefin production (e.g., polyethylene, polypropylene) to prevent thermal and oxidative degradation during processing and end-use.
• Key component in formulating antioxidant packages for synthetic rubbers and elastomers.
• Used in the stabilization of lubricating oils, greases, and other hydrocarbon-based fluids.
• Employed in the production of adhesives, sealants, and coatings to improve weatherability and longevity.
• Functional additive in food-contact compliant polymer applications, subject to specific purity grades and regulatory approvals.

Basic Information

Product Name	Methyl-3-(3-Tert.-Butyl-4-Hydroxy-5-Methylphenyl)Propionat
CAS No.	6386-39-6
Molecular Formula	C15H22O3
Molecular Weight	250.33 g/mol
Synonyms	Methyl 3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate; 3-(3,5-Di-tert-butyl-4-hydroxyphenyl)propionic acid methyl ester (common misnomer); Benzenepropanoic acid, 3-(1,1-dimethylethyl)-4-hydroxy-5-methyl-, methyl ester; Antioxidant 1076 intermediate; Irganox 1076 precursor; Phenolic antioxidant intermediate; Methyl ester of 3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionic acid
EINECS	228-983-4

Quality Control

Our production of Methyl-3-(3-Tert.-Butyl-4-Hydroxy-5-Methylphenyl)Propionat adheres to stringent quality management protocols. Every batch is analyzed to ensure it meets precise chemical and physical specifications, with a focus on high purity and consistent performance as an antioxidant intermediate. Certificates of Analysis (COA) documenting purity, identity, and impurity profiles are provided to guarantee traceability and compliance with your quality requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in opaque packaging or darkened storage conditions.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.5%
Melting Point	50 - 54 °C
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 1.5%

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