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1339955-99-5

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1339955-99-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1339955-99-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,9,9,5 and 5 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1339955-99:
(9*1)+(8*3)+(7*3)+(6*9)+(5*9)+(4*5)+(3*5)+(2*9)+(1*9)=215
215 % 10 = 5
So 1339955-99-5 is a valid CAS Registry Number.

1339955-99-5Downstream Products

1339955-99-5Relevant articles and documents

Direct access to 3-aminoindazoles by Buchwald-Hartwig C-N coupling reaction

Lohou, Elodie,Collot, Valeri,Stiebing, Silvia,Rault, Sylvain

, p. 2651 - 2663 (2011/10/04)

An efficient synthesis of various N-substituted 3-aminoindazoles using Buchwald-Hartwig C-N coupling reaction is described. Several parameters were varied, including the nature of the halogen atom and the protecting group of the starting materials, as well as the effects of the catalyst system, base, solvent, and reaction time. The efficiency of microwave versus conventional heating was also compared to test the outcome of the reaction. Thus, by applying this recent knowledge about metal-catalyzed aminations, an alternative for the direct synthesis of primary 3-aminoindazoles has been provided. Georg Thieme Verlag Stuttgart. New York.

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