Description

Methyl 3-(3,5-Di-tert-Butyl-4-Hydroxyphenyl)Propionate is a high-performance hindered phenolic antioxidant, widely recognized for its efficacy in stabilizing polymers and organic materials against oxidative degradation. This compound is critical for manufacturers seeking to extend product lifespan and maintain material integrity under demanding thermal and environmental conditions. It is an essential additive for the plastics, rubber, and specialty chemical industries, where long-term stability is a key performance requirement.

Application

• Primary antioxidant in polyolefins (PP, PE) and other polymers to prevent thermal-oxidative degradation during processing and service life.
• Stabilizer for synthetic rubbers and elastomers to enhance durability and resist cracking.
• Additive in adhesives, sealants, and coatings to improve weatherability and prevent embrittlement.
• Stabilizing component in lubricants, greases, and hydraulic fluids to inhibit oil oxidation and sludge formation.
• Intermediate in the synthesis of more complex, high-molecular-weight phenolic antioxidants.
• Used in food-contact polymer applications where compliant grades are available, subject to regulatory approval.

Basic Information

Product Name	Methyl 3-(3,5-Di-tert-Butyl-4-Hydroxyphenyl)Propionate
CAS No.	6386-38-5
Molecular Formula	C19H30O3
Molecular Weight	306.44 g/mol
Synonyms	Methyl 3-(3,5-Di-tert-butyl-4-hydroxyphenyl)propionate; Methyl 3,5-Di-tert-butyl-4-hydroxyhydrocinnamate; Irganox 1330; Antioxidant 1330; AO-1330; 3,5-Di-tert-butyl-4-hydroxyhydrocinnamic acid methyl ester; Propanoic acid, 3-(3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl)-, methyl ester
EINECS	228-963-8

Quality Control

Our production of Methyl 3-(3,5-Di-tert-Butyl-4-Hydroxyphenyl)Propionate adheres to stringent quality management protocols. Every batch is subjected to comprehensive analytical testing, including HPLC for assay and purity, to ensure it meets precise customer and industry specifications. Certificates of Analysis (COA) documenting all critical parameters are provided as standard.

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 sources and incompatible materials. Under these conditions, the product has excellent shelf stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Melting Point	69 - 72 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm

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