Description

Methyl 3-(3-tert-Butyl-4-Hydroxyphenyl)Propionate is a high-purity phenolic antioxidant ester, widely recognized for its effectiveness in stabilizing polymers and organic materials against oxidative degradation. This compound is valued for its compatibility and low volatility, making it a reliable additive for extending product shelf life and maintaining performance under thermal stress. It is an essential raw material for formulators in the plastics, rubber, and coatings industries seeking to protect their products from premature aging and failure.

Application

• Polymer Stabilization: Primary antioxidant for polyolefins (PP, PE), PVC, and engineering plastics to prevent thermal and oxidative degradation during processing and end-use.
• Rubber Industry: Used in the production of synthetic rubbers (SBR, EPDM) to inhibit oxidation and prolong the service life of rubber products.
• Lubricants & Fuels: Additive in lubricating oils, greases, and fuels to enhance oxidative stability and prevent sludge formation.
• Adhesives & Sealants: Incorporated to protect adhesive formulations from degradation, ensuring consistent bonding performance over time.
• Coating Resins: Stabilizer for alkyd, acrylic, and other coating resins to prevent yellowing and embrittlement caused by exposure to heat and light.
• Intermediate for Synthesis: Serves as a key building block in the synthesis of more complex antioxidant molecules and specialty chemicals.

Basic Information

Product Name	Methyl 3-(3-tert-Butyl-4-Hydroxyphenyl)Propionate
CAS No.	36837-50-0
Molecular Formula	C15H22O3
Molecular Weight	250.33 g/mol
Synonyms	Methyl 3-(3-tert-butyl-4-hydroxyphenyl)propanoate; Methyl 3-(3-tert-butyl-4-hydroxyphenyl)propionate; Benzenepropanoic acid, 3-(1,1-dimethylethyl)-4-hydroxy-, methyl ester; Methyl 3-(3-tert-butyl-4-hydroxy-phenyl)propionate; Antioxidant 36837-50-0; Phenolic antioxidant ester; Methyl ester of 3-(3-tert-butyl-4-hydroxyphenyl)propionic acid
EINECS	253-242-4

Quality Control

Our production of Methyl 3-(3-tert-Butyl-4-Hydroxyphenyl)Propionate adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Every lot is analyzed against comprehensive specifications using advanced techniques like HPLC and GC. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment, ensuring full traceability and compliance with customer and industry requirements.

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; for long-term storage, maintaining an inert atmosphere (e.g., under nitrogen) is recommended to preserve product integrity. Keep away from heat sources and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.5%
Melting Point	62 - 66 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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