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176171-61-2

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176171-61-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 176171-61-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,6,1,7 and 1 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 176171-61:
(8*1)+(7*7)+(6*6)+(5*1)+(4*7)+(3*1)+(2*6)+(1*1)=142
142 % 10 = 2
So 176171-61-2 is a valid CAS Registry Number.

176171-61-2Relevant articles and documents

Ugi four-component reaction of alcohols: Stoichiometric and catalytic oxidation/MCR sequences

Drouet, Fleur,Masson, Géraldine,Zhu, Jieping

supporting information, p. 2854 - 2857 (2013/07/26)

A new, simple, and efficient procedure for the one-pot Ugi four-component reaction of alcohols instead of aldehydes is described. Using a stoichiometric amount of IBX or only 1-2% of sodium 2-iodobenzenesulfonate in the presence of Oxone, a wide range of primary alcohols were oxidized to the aldehyde that were directly engaged in the Ugi four-component reaction to afford α-acetamidoamides in good to excellent yields.

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