Description

Benzenemethanol, 4-Hydroxy-3,5-Bis(1-Methylethyl)- is a hindered phenol derivative with significant utility as an antioxidant and stabilizer in various industrial processes. This compound matters because it effectively inhibits oxidative degradation, thereby extending the shelf life and maintaining the performance integrity of sensitive materials. It is primarily needed by manufacturers in the polymer, lubricant, and specialty chemical industries seeking reliable, high-performance additives.

Application

• Polymer Stabilizer: Acts as an antioxidant in plastics and synthetic rubbers to prevent thermal and oxidative degradation during processing and end-use.
• Lubricant & Fuel Additive: Inhibits oxidation in industrial oils, greases, and fuels, reducing sludge formation and viscosity increase.
• Intermediate for Specialty Chemicals: Serves as a key building block in the synthesis of more complex antioxidants, UV stabilizers, and pharmaceutical agents.
• Cosmetic & Personal Care Preservative: Used in formulations to protect oils and butters from rancidity, enhancing product stability.
• Adhesive & Sealant Formulations: Improves the aging resistance of polyurethane and other adhesive systems.

Basic Information

Product Name	Benzenemethanol, 4-Hydroxy-3,5-Bis(1-Methylethyl)-
CAS No.	33403-20-2
Molecular Formula	C13H20O2
Molecular Weight	208.30 g/mol
Synonyms	2,6-Diisopropyl-4-hydroxymethylphenol; 4-Hydroxymethyl-2,6-diisopropylphenol; 2,6-Diisopropyl-4-(hydroxymethyl)phenol; 4-(Hydroxymethyl)-2,6-diisopropylphenol; Phenol, 2,6-bis(1-methylethyl)-4-(hydroxymethyl)-; Antioxidant 1790; AO-1790; CAS 33403-20-2
EINECS	251-476-5

Quality Control

Our production of Benzenemethanol, 4-Hydroxy-3,5-Bis(1-Methylethyl)- adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes rigorous analytical testing, including HPLC for assay and related substances, to meet exacting customer specifications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is easily oxidized and should be kept under an inert atmosphere (e.g., nitrogen) for long-term storage to maintain optimal efficacy. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	115 - 120 °C
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.