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950993-49-4

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950993-49-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 950993-49-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,0,9,9 and 3 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 950993-49:
(8*9)+(7*5)+(6*0)+(5*9)+(4*9)+(3*3)+(2*4)+(1*9)=214
214 % 10 = 4
So 950993-49-4 is a valid CAS Registry Number.

950993-49-4Downstream Products

950993-49-4Relevant articles and documents

The methyl group as a source of structural diversity in heterocyclic chemistry: Side chain functionalization of picolines and related heterocycles

Mamane, Victor,Aubert, Emmanuel,Fort, Yves

, p. 7294 - 7300 (2008/02/11)

(Chemical Equation Presented) The reaction of 2-picoline at the methyl group with NDA and KDA followed by dimethyldisulfide trapping furnished, respectively, dithioacetals and trithioortho esters with high selectivity. The method was successfully applied to other methyl-substituted pyridines, quinolines, and pyrazines. Dithioketals were prepared by a one-pot procedure involving the reaction of metalated 2-picoline with 2 equiv of dimethyldisulfide followed by in situ trapping with a second electrophile. All of the generated thio-substituted compounds were efficiently transformed in presence of mercury salts or under oxidizing conditions to other functional groups comprising aldehydes, ketones, ketals, thiol esters, orthoesters, and esters.

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