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519141-03-8

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519141-03-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 519141-03-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,1,9,1,4 and 1 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 519141-03:
(8*5)+(7*1)+(6*9)+(5*1)+(4*4)+(3*1)+(2*0)+(1*3)=128
128 % 10 = 8
So 519141-03-8 is a valid CAS Registry Number.

519141-03-8Relevant articles and documents

Multi-purpose functionality for the structural elaboration of the piperazine-2,5-dione motif

Chai, Christina L. L.,Elix, John A.,Huleatt, Paul B.

, p. 263 - 265 (2003)

Mild methods for controlled C- and N-alkylation of 3-benzyloxycarbonylpiperazine-2,5-diones are reported. The benzyloxylcarbonyl substituent can also serve as latent functionality for N-acyliminium ion formation and subsequent trapping enables installation of new carbon and/or heteroatom substituents.

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