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2569-68-8

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2569-68-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2569-68-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,5,6 and 9 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 2569-68:
(6*2)+(5*5)+(4*6)+(3*9)+(2*6)+(1*8)=108
108 % 10 = 8
So 2569-68-8 is a valid CAS Registry Number.

2569-68-8Relevant articles and documents

THE FIRST ISOLATION OF ISOMERIC α- AND β-PHENYLAZOXYPYRIDINE-N-OXIDES

Buncel, Erwin,Keum, Sam-Rok

, p. 1751 - 1753 (2007/10/02)

The oxidation of 4-phenylazopyridine gives rise to the isomeric α- and β-4-phenylazoxypyridine-N-oxides, contrary to a previous literature report. 3-Phenylazopyridine similarly affords the respective α- and β-azoxy compounds but 2-phenylazopyridine yields only α-azoxy product.

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