110553-27-0

Basic information

• Product Name: 2-Methyl-4,6-bis(octylsulfanylmethyl)phenol
• Synonyms: 4,6- two(Xin Liujiaji)of o-cresol;2-methyl-4,6-bis(octylsulfanylmethyl)phenol;4,6-bis (octylthiomethyl)-o-cresol;IRGANOX 1520;Phenol, 2-methyl-4,6-bis(octylthio)methyl-;2,4-BIS(OCTYLTHIOMETHYL)-6-METHYLPHENOL;2-METHYL-4,6-BIS((OCTYLTHIO)METHYL)PHENOL;2-methyl-4,6-[(octylthio)methyl]phenol
• CAS NO: 110553-27-0
• Molecular Formula: C₂₅H₄₄OS₂
• Molecular Weight: 424.75
• EINECS: 402-860-6
• Product Categories: rubber antioxidant;Benzenes;Antioxidant series
• Mol File: 110553-27-0.mol
• Article Data: 9

Chemical Properties

• Boiling Point: 532.2 °C at 760 mmHg
• Flash Point: 257.9 °C
• Appearance: White crystal or colorless to pale yellow liquid
• Density: 0.99 g/cm³
• Vapor Pressure: 6.06E-12mmHg at 25°C
• Refractive Index: 1.532
• Storage Temp.: Refrigerator
• Solubility: Chloroform (Slightly), Methanol (Slightly)
• PKA: 9.94±0.50(Predicted)
• Water Solubility: 99-2000μg/L at 20-25℃
• CAS DataBase Reference: 2-Methyl-4,6-bis(octylsulfanylmethyl)phenol(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Methyl-4,6-bis(octylsulfanylmethyl)phenol(110553-27-0)
• EPA Substance Registry System: 2-Methyl-4,6-bis(octylsulfanylmethyl)phenol(110553-27-0)

Safety Data

• Hazardous Substances Data: 110553-27-0(Hazardous Substances Data)

Usage

Characterization

Antioxidant 1520 is a multifunctional liquid phenolic antioxidant for organic substrates such as elastomers, plastics, adhesives, sealants, oils and lubricants. It effectively protects the substrate against thermo-oxidative degradation during processing and long-term heat aging. Antioxidant 1520 is nonstaining, non-discoloring, low in volatility, and stable to light and heat. Antioxidant 1520 is specially recommended for emulsion and solution polymerized elastomers, such as BR, SBR, NBR, SBS and others.

Application

Antioxidant 1520 is an effective thermo-oxidative stabilizer in a wide range of solution polymerized, emulsion polymerized and thermoplastic elastomers including: BR, SBR, NBR, IR, SBS, and SIS as well as natural rubber. The antioxidant is effective both as a raw elastomer and compound stabilizer. It is also effective in various adhesive and sealant applications and latex applications. Antioxidant 1520 is not recommended for odor sensitive hot melt adhesives or their raw materials.

Features

Antioxidant 1520 is unique in its ability to provide both processing and long-term heat aging stability used alone, at low levels and without costabilizers. Where necessary Antioxidant 1520 can be used with other additives such as secondary antioxidants, benzofuranone, light stabilizers and other functional stabilizers. The effectiveness of these products in a wide range of elastomers coupled with extensive food contact approvals makes Antioxidant 1520 an excellent choice where consolidation of antioxidant systems is desirable. In addition, the liquid, low viscosity nature of Antioxidant 1520 makes bulk delivery and storage very convenient.

Guidelines for uses

The normal usage levels for Antioxidant 1520 range between 0.05 and 0.3%. For special applications and, depending on substrate, manufacturing process and performance requirements, the optimal concentration may be as high as 1.0% or even more.

Handling and Safety

In accordance with good industrial practice, handle with care and prevent contamination of the environment. For more detailed information please refer to the material safety data sheet.

Uses

Antioxidant 1520 is a multifunctional liquid phenolic antioxidant with highly effective stabilization for organic materials such as elastomers, plastics, adhesives sealants, oils and lubricants. It protects these materials against thermo-oxidative degradation. It can be applied for emulsion and solution polymerized elastomers such as BR, SBR, NBR, SBS, and others. Antioxidant 1520 is effective both as a raw elastomer and compound stabilizer. It also effectively protects various adhesive, sealant, and latex applications. It is non-discoloring, non-staining, low in volatility, and stable to light and heat. It is not recommended for odor sensitive hot melt adhesives or their raw materials. Antioxidant 1520 can be used alone at low levels without co-stabilizers to provide both processing and long-terms heat aging stability. If needed, it also can be used with other additives such as secondary antioxidants, benzofuranone, light stabilizers, and other functional stabilizers. The effectiveness of this product used in a wide range of elastomers is exceptional along with extensive food contact approvals.

InChI:InChI=1/C25H44OS2/c1-4-6-8-10-12-14-16-27-20-23-18-22(3)25(26)24(19-23)21-28-17-15-13-11-9-7-5-2/h18-19,26H,4-17,20-21H2,1-3H3

Upstream product

• 50-00-0 formaldehyd 
• 111-88-6 Octanethiol 
• 95-48-7 ortho-cresol 
• 74-88-4 methyl iodide 

Downstream Products

• 164073-77-2 2-methyl-6-<(octylthio)methyl>-4-<(octylthio)methylidene>cyclohexa-2,5-dien-1-one 
• 156834-17-2 4-<<(methoxycarbonyl)methylthio>(octylthio)methyl>-2-methyl-6-<(octylthio)methyl>phenol 
• 156834-15-0 4--2-methyl-6-<(octylthio)methyl>phenol 

Relevant articles and documents

Synthetic method of antioxidant 1520

The invention relates to a synthesis method of an antioxidant 1520. According to the method, cheap diethanol amine is used as an organic amine catalyst, so that the problem of high volatility of dimethylamine is solved, and the problem that other higher amines are not easy to remove is also solved; the use of iodomethane and CuI promotes the deamination of the Mannich base and promotes the continuous conversion of the residual o-cresol, and the product has high purity and good quality. No organic solvent is added basically, waste water is little, and environmental friendliness is high; and high-voltage equipment is not used, so that the production safety coefficient is greatly improved. The method can be applied in a large scale and has wide commercial prospects.

Preparation method for antioxidant 2,4-bi(n-octyl sulfur methylene)-6-methylphenol

The invention relates to a novel preparation method for antioxidant 2,4-bi(n-octyl sulfur methylene)-6-methylphenol. Under piperidine catalysis, raw materials, namely, o-methylphenol, paraformaldehyde and octyl mercaptan react to generate antioxidant 2,4-bi(n-octyl sulfur methylene)-6-methylphenol; after the reaction, a solvent, water generated through the reaction, a catalyst and excessive unreacted raw materials are removed, and a crude product is obtained; the crude product is refined through a crystallization or cooling washing method. The product obtained through the method is colorless and is free of the disgusting smell of octyl mercaptan.

4-Formyl amino-n-methylpiperidine derivatives, the use thereof as stabilisers and organic material stabilised therewith

The present invention relates to 4-formylamino-N-methylpiperidine derivatives of the formula (I) where the variables are as defined in the Description, to a process for preparing these piperidine derivatives, to the use of these piperidine derivatives of the invention, or prepared according to the invention, for stabilizing organic material, in particular for stabilizing plastics or coating materials, and also to the use of these piperidine derivatives of the invention, or prepared according to the invention, as light stabilizers or stabilizers for wood surfaces. The present invention further relates to stabilized organic material which comprises these piperidine derivatives of the invention or prepared according to the invention.