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279256-99-4

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279256-99-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 279256-99-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,9,2,5 and 6 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 279256-99:
(8*2)+(7*7)+(6*9)+(5*2)+(4*5)+(3*6)+(2*9)+(1*9)=194
194 % 10 = 4
So 279256-99-4 is a valid CAS Registry Number.

279256-99-4Relevant articles and documents

Divergent reaction pathways in amine additions to β-lactone electrophiles. An application to β-peptide synthesis

Nelson, Scott G.,Spencer, Keith L.,Cheung, Wing S.,Mamie, Steven J.

, p. 7081 - 7091 (2007/10/03)

β-Lactone electrophiles are subject to regioselective addition-elimination (AE) or SN2 ring opening with various nitrogen-based nucleophiles. Primary and secondary amines promote AE ring opening to deliver products that are the functional equiv

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