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1272659-58-1

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1272659-58-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1272659-58-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,7,2,6,5 and 9 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1272659-58:
(9*1)+(8*2)+(7*7)+(6*2)+(5*6)+(4*5)+(3*9)+(2*5)+(1*8)=181
181 % 10 = 1
So 1272659-58-1 is a valid CAS Registry Number.

1272659-58-1Relevant articles and documents

Synthesis of [1,2,4]-triazolo[1,5-a]pyrimidines by Dimroth rearrangement of [1,2,4]-triazolo[4,3-a]pyrimidines: A theoretical and NMR study

Salgado, Antonio,Varela, Carmen,García Collazo, Ana María,García, Fernando,Pevarello, Paolo,Alkorta, Ibon,Elguero, José

experimental part, p. 13 - 24 (2011/04/14)

Novel [1,2,4]-triazolo-[1,5-a]pyrimidine derivatives were prepared by oxidative cyclization of suitable N-benzylidene-N′-pyrimidin-2-yl hydrazine precursors, followed by a Dimroth rearrangement. Reaction of 6-bromo-[1,2,4]-triazolo-[4,3-a]pyrimidines with

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