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249763-21-1

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249763-21-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 249763-21-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,9,7,6 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 249763-21:
(8*2)+(7*4)+(6*9)+(5*7)+(4*6)+(3*3)+(2*2)+(1*1)=171
171 % 10 = 1
So 249763-21-1 is a valid CAS Registry Number.

249763-21-1Relevant articles and documents

Synthesis of arcyriarubine regioisomers by Pd(0)-catalysis or via lithiated indole derivatives - Conformational analysis by semiempirical and X-ray methods

Mahboobi, Siavosh,Dove,Kuhr,Pongratz

, p. 820 - 827 (2007/10/03)

Regioisomers of arcyriarubines were synthesized by the reaction of N- protected indoles with dibromomaleimide either in the presence of a Pd(0)- catalyst or n-BuLi. Methods for N-alkylation of these bisindolylmaleimides and deprotection of the indole-N ar

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