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173209-05-7

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173209-05-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 173209-05-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,2,0 and 9 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 173209-05:
(8*1)+(7*7)+(6*3)+(5*2)+(4*0)+(3*9)+(2*0)+(1*5)=117
117 % 10 = 7
So 173209-05-7 is a valid CAS Registry Number.

173209-05-7Relevant articles and documents

Catalytic transformation of esters of 1,2-azido alcohols into α-amido ketones

Kim, Yongjin,Pak, Han Kyu,Rhee, Young Ho,Park, Jaiwook

, p. 6549 - 6552 (2016/06/01)

The esters of 1,2-azido alcohols were transformed into α-amido ketones without external oxidants through the Ru-catalyzed formation of N-H imines with the liberation of N2 followed by intramolecular migration of the acyl moiety. A wide range of α-amido ketones were obtained, and one-pot transformation into the corresponding oxazoles (or a thiazole) was demonstrated.

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