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2,2'-Dithiobis[6-(1,1-dimethylethyl)-4-methylphenol], also known as Antioxidant 2246 or Santowhite, is a chemical compound with the molecular formula C20H26O2S2. It is a white crystalline powder that is soluble in organic solvents and slightly soluble in water. 2,2'-Dithiobis[6-(1,1-dimethylethyl)-4-methylphenol] is primarily used as an antioxidant and stabilizer in various industrial applications, including rubber, plastics, and adhesives. It helps prevent the oxidation and degradation of these materials, thereby extending their service life and maintaining their physical properties. The compound is also known for its low volatility, low color formation, and excellent compatibility with other additives, making it a popular choice in the industry.

1620-66-2

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1620-66-2 Usage

Common Use

Antioxidant
Frequently used in industrial and commercial products to prevent degradation from oxidation.

Applications

Polymers, Plastics, and Rubber
Added to these materials to extend their lifespan by preventing oxidation.

Other Uses

Adhesives, Coatings, and Lubricants
Utilized in the production of these substances for enhanced stability and performance.

Presence in Cosmetic and Personal Care Products

Stabilizer and Preservative
Can be found in some cosmetic and personal care products to maintain their quality and effectiveness.
Plays a crucial role in ensuring the durability and effectiveness of various industrial and consumer goods.

Check Digit Verification of cas no

The CAS Registry Mumber 1620-66-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,2 and 0 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1620-66:
(6*1)+(5*6)+(4*2)+(3*0)+(2*6)+(1*6)=62
62 % 10 = 2
So 1620-66-2 is a valid CAS Registry Number.

1620-66-2Relevant academic research and scientific papers

CATALYSTS FOR THE POLYMERIZATION OF STYRENE

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Page/Page column 21, (2010/02/08)

The invention relates to bisphenolate ligand systems and related compounds, transition metal compounds containing said inventive ligand systems, a catalyst system for the polymerization of unsaturated compounds containing at least one inventive transition metal compound and at least one co-catalyst, a method for the production of polymers by polymerization or copolymerization of at least one unsaturated compound in the presence of an inventive catalyst system and the use of an inventive transition metal compound or an inventive catalyst system for the production of isotactic polystyrene.

Esterification process with calcium hydroxybenzyl phosphonate-phenol sulfide catalyst system

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, (2008/06/13)

An esterfication process particularly for the preparation of rosin esters, polyesters and polymeric esters wherein aliphatic or aromatic carboxylic acids are reacted with appropriate alcohols in the presence of catalytic amounts of a mixture of a calcium bis[monoethyl-(3,5-di-tert-butyl-4-hydroxybenzyl) phosphonate] and a phenol sulfide, the presence of said mixture serving to reduce the time necessary for complete esterification and to provide esters with increased oxidation stability and better color.

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