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78504-05-9

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78504-05-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78504-05-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,5,0 and 4 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 78504-05:
(7*7)+(6*8)+(5*5)+(4*0)+(3*4)+(2*0)+(1*5)=139
139 % 10 = 9
So 78504-05-9 is a valid CAS Registry Number.

78504-05-9Relevant articles and documents

The role of the carbonyl group in the intermolecular 1,3-cycloaddition of azido(2-heteroaryl)methanones with activated olefins

Zanirato, Paolo

, p. 1420 - 1425 (2007/10/03)

Treatment of the azido(2-heteroaryl)methanones 1-5 with methyl (E)-3-pyrrolidinoprop-2-enoate at room temperature yielded the methyl 1,2,3-triazolecarboxylate 6 and (2-heteroaryl) (pyrrolidino)methanones 1a-5a via an unusual 1,3-cycloaddition reaction. An

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