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42157-57-3

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42157-57-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42157-57-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,1,5 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 42157-57:
(7*4)+(6*2)+(5*1)+(4*5)+(3*7)+(2*5)+(1*7)=103
103 % 10 = 3
So 42157-57-3 is a valid CAS Registry Number.

42157-57-3SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017

1.Identification

1.1 GHS Product identifier

Product name ethyl mesityl sulfide

1.2 Other means of identification

Product number -
Other names ethyl-mesityl sulfide

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:42157-57-3 SDS

42157-57-3Relevant articles and documents

Iodine(III) Enabled Dehydrogenative Aryl C?S Coupling by in situ Generated Sulfenium Ion

Choudhuri, Khokan,Maiti, Saikat,Mal, Prasenjit

, p. 1092 - 1101 (2019/01/30)

Due to the normal polarity preferences, arenes form stable complexes with thiols through S?H???π interaction and direct dehydrogenative aryl C?S coupling is usually restricted. We report here an umpolung based one pot and direct C?S coupling approach unde

Electrophilic alkylation of pseudotetrahedral nickel(II) arylthiolate complexes

Deb, Tapash,Jensen, Michael P.

supporting information, p. 87 - 96 (2015/03/03)

A kinetic study is reported for reactions of pseudotetrahedral nickel(II) arylthiolate complexes [(TpR,Me)Ni-SAr] (TpR,Me = hydrotris{3-R-5-methyl-1-pyrazolyl}borate, R = Me, Ph, and Ar = C6H5, C6H4-4-Cl, C6H4-4-Me, C6H4-4-OMe, 2,4,6-Me3C6H2, 2,4,6-iPr3C6H2) with organic electrophiles R'X (i.e., MeI, EtI, BzBr) in low-polarity organic solvents (toluene, THF, chloroform, dichloromethane, or 1,2-dichloroethane), yielding a pseudotetrahedral halide complex [(TpR,Me)Ni-X] (X = Cl, Br, I) and the corresponding organosulfide R'SAr. Competitive reactions with halogenated solvents and adventitious air were also examined. Akin to reactions of analogous and biomimetic zinc complexes, a pertinent mechanistic question is the nature of the reactive nucleophile, either an intact thiolate complex or a free arylthiolate resulting from a dissociative pre-equilibrium. The observed kinetics conformed to a second-order rate law, first order with respect to the complex and electrophile, and no intermediate complexes were observed. In the absence of a mechanistically diagnostic rate law, a variety of mechanistic probes were examined, including kinetic effects of varying the metal, solvent, electrophile, and temperature, as well as the 3-pyrazolyl and arylthiolate substituents. Compared to zinc analogues, the effect of Ni-SAr covalency is also of interest herein. The results are broadly interpreted with respect to the disparate mechanistic pathways.

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