Description

Alpha iso-Methyl Ionol is a specialized phenolic antioxidant used to inhibit oxidative degradation in various materials. This compound is critical for extending the service life and maintaining the performance integrity of products susceptible to oxidation. It is primarily sought after by manufacturers in the polymer, rubber, and specialty chemical industries for its stabilizing properties.

Application

• Primary antioxidant in polyolefins (e.g., polyethylene, polypropylene) to prevent thermal and oxidative degradation during processing and end-use.
• Stabilizer for synthetic rubbers and elastomers to enhance durability and prevent cracking.
• Additive in lubricants, greases, and transformer oils to inhibit oxidation and sludge formation.
• Stabilizing agent in adhesives and sealants to maintain consistency and performance over time.
• Protective additive in waxes and coatings to prevent yellowing and embrittlement caused by UV and heat exposure.
• Intermediate in the synthesis of other high-performance antioxidants and specialty chemicals.

Basic Information

Product Name	Alpha iso-Methyl Ionol
CAS No.	51595-91-6
Molecular Formula	C15H24O
Molecular Weight	220.35 g/mol
Synonyms	2,6-Di-tert-butyl-4-(1-methylpropyl)phenol; 4-(1-Methylpropyl)-2,6-di-tert-butylphenol; Butylated Hydroxytoluene derivative; AO-29; Antioxidant 29; Ionol CP; Phenol, 2,6-bis(1,1-dimethylethyl)-4-(1-methylpropyl)-; 2,6-Di-tert-butyl-4-sec-butylphenol
EINECS	257-273-5

Quality Control

Our Alpha iso-Methyl Ionol is produced under a stringent quality management system. Every batch undergoes comprehensive analytical testing, including assay, identification, and impurity profiling, to ensure it meets exacting standards for industrial applications. A Certificate of Analysis (COA) detailing purity and key specifications is provided with each shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place 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 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)	≥ 98.5%
Melting Point	50 - 54 °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.