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725234-25-3

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725234-25-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 725234-25-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,2,5,2,3 and 4 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 725234-25:
(8*7)+(7*2)+(6*5)+(5*2)+(4*3)+(3*4)+(2*2)+(1*5)=143
143 % 10 = 3
So 725234-25-3 is a valid CAS Registry Number.

725234-25-3Downstream Products

725234-25-3Relevant articles and documents

Palladium-catalyzed direct arylation using free NH2 substituted thiophene derivatives with inhibition of amination type reaction

Derridj, Fazia,Si Larbi, Karima,Roger, Julien,Djebbar, Safia,Doucet, Henri

experimental part, p. 7463 - 7471 (2012/09/10)

The palladium-catalyzed direct arylation at C2 or C5 of free NH2 substituted thiophene derivatives was found to proceed in moderate to high yields using a variety of aryl halides. The choice of potassium acetate as the base was found to be crucial to inhibit the amination reaction and to promote the direct arylation.

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