Description

Methyl 3,5-Di-tert-Butylsalicylate is a high-purity synthetic organic compound widely used as a key intermediate and performance additive in advanced material formulations. Its sterically hindered phenolic structure provides excellent antioxidant and UV-stabilizing properties, making it critical for enhancing product longevity and performance under demanding conditions. This chemical is essential for manufacturers in the polymer, agrochemical, and specialty chemical industries seeking to improve the stability and durability of their end products.

Application

• Polymer Additive: Acts as a highly effective antioxidant and light stabilizer in polyolefins (PP, PE), PVC, and engineering plastics to prevent thermal and UV degradation.
• Agrochemical Intermediates: Serves as a crucial building block in the synthesis of advanced pesticides, herbicides, and plant growth regulators.
• Lubricant & Fuel Additives: Used as an antioxidant component in synthetic lubricants, greases, and industrial fuels to inhibit oxidation and sludge formation.
• Rubber Industry: Imparts antioxidant properties to synthetic rubbers and elastomers, extending their service life.
• Specialty Chemical Synthesis: A versatile intermediate for producing other hindered phenol antioxidants, UV absorbers, and pharmaceutical precursors.
• Coatings & Adhesives: Incorporated into formulations to protect coatings, paints, and adhesives from yellowing and embrittlement caused by light and heat.

Basic Information

Item	Details
Product Name	Methyl 3,5-Di-tert-Butylsalicylate
CAS No.	15018-03-8
Molecular Formula	C16H24O3
Molecular Weight	264.36 g/mol
Synonyms	3,5-Di-tert-butyl-4-hydroxybenzoic acid methyl ester; Methyl 3,5-bis(1,1-dimethylethyl)-4-hydroxybenzoate; 4-Hydroxy-3,5-di-tert-butylbenzoic acid methyl ester; Methyl 4-hydroxy-3,5-di-tert-butylbenzoate; Benzoic acid, 4-hydroxy-3,5-bis(1,1-dimethylethyl)-, methyl ester; Antioxidant MBDB; UV Absorber MBDB
EINECS	239-109-1

Quality Control

Our production of Methyl 3,5-Di-tert-Butylsalicylate adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistent performance. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications. We are committed to meeting the quality standards required for global industrial and specialty chemical applications.

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). Keep away from strong oxidizing agents, strong acids, and strong bases. The product is stable under recommended conditions.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.5%
Melting Point	62 - 66 °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.