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Dioctadecanoic acid thiobis(2,1-ethanediyl) ester, also known as distearoylthreitol or DST, is a chemical compound with the molecular formula C39H76O4S. It is a type of diester formed by the esterification of dioctadecanoi acid with threitol, resulting in a long-chain fatty acid ester. Dioctadecanoic acid thiobis(2,1-ethanediyl) ester is characterized by its amphiphilic nature, with hydrophilic and hydrophobic regions, which allows it to form micelles and bilayers in aqueous solutions. DST is commonly used in the pharmaceutical and cosmetic industries as an emulsifier, stabilizer, and surfactant, due to its ability to reduce surface tension and improve the solubility of other compounds. Additionally, it has potential applications in drug delivery systems, as it can help in the formation of liposomes and other vesicular structures for encapsulating and releasing active ingredients.

4275-32-5

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4275-32-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4275-32-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,7 and 5 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 4275-32:
(6*4)+(5*2)+(4*7)+(3*5)+(2*3)+(1*2)=85
85 % 10 = 5
So 4275-32-5 is a valid CAS Registry Number.
InChI:InChI=1/C40H78O4S/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-29-31-33-39(41)43-35-37-45-38-36-44-40(42)34-32-30-28-26-24-22-20-18-16-14-12-10-8-6-4-2/h3-38H2,1-2H3

4275-32-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-(2-octadecanoyloxyethylsulfanyl)ethyl octadecanoate

1.2 Other means of identification

Product number -
Other names Thiodiglycol distearate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:4275-32-5 SDS

4275-32-5Downstream Products

4275-32-5Relevant academic research and scientific papers

Selective synthesis of thiodiglycol dicarboxylic acid esters via p-TsOH/C-catalysed direct esterification

Jiang, Dahong,Huang, Min

, p. 1087 - 1090 (2013/03/28)

The esterification of thiodiglycol and long alkyl-chain carboxylic acids is reported. Reaction of thiodiglycol with carboxylic acid via p-TsOH/C-catalysed direct esterification afforded thiodiglycol dicarboxylic acid esters in good yields and chemoselectivity. The use of immobilized p-TsOH on activated carbon as catalyst is crucial for the transformation. Indian Academy of Sciences.

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