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19521-14-3

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19521-14-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19521-14-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,5,2 and 1 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 19521-14:
(7*1)+(6*9)+(5*5)+(4*2)+(3*1)+(2*1)+(1*4)=103
103 % 10 = 3
So 19521-14-3 is a valid CAS Registry Number.

19521-14-3Relevant articles and documents

Stereochemistry and Bonding in N-Substituted-2-phenyl-3-cyanoaziridines

Keifer, Paul A.,Nagel, Donald L.,Cromwell, Norman H.

, p. 353 - 359 (2007/10/02)

A series of ten N-alkyl(aralkyl)-2-phenyl-3-cyanoaziridines has been synthesized to continue investigations of the molecular stereochemistry and bonding of functionalized aziridines.Substantial spectroscopic evidence is presented which indicates the prese

Addition de cyano-2 aziridines a quelques alcynes; obtention de pyrroles

Merah, Boumediene,Texier, Fernand

, p. 552 - 558 (2007/10/02)

Addition of the α-bromocinnamonitrile to primary amines (Cromwell method) leads to 2-cyano-3-phenyl-N-alkyl-aziridines, but the formation of the isomeric enamines always competes with this reaction.These aziridines, which are potential azomethine-ylids, a

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