133857-63-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133857-63-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,8,5 and 7 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 133857-63:
(8*1)+(7*3)+(6*3)+(5*8)+(4*5)+(3*7)+(2*6)+(1*3)=143
143 % 10 = 3
So 133857-63-3 is a valid CAS Registry Number.
133857-63-3Relevant articles and documents
The C-Arylation of α-Cyano Esters and Malononitriles by Aryllead(IV) Triacetates
Kozyrod, Robert P.,Morgan, Jacqueline,Pinhey, John T.
, p. 369 - 376 (2007/10/02)
The arylation of soft carbon nucleophiles by aryllead(IV) triacetates has been extended to α-cyano esters and malononitriles.Arylation did not occur with the parent compounds, ethyl cyanoacetate and malononitrile, but in both series monosubstituted compou
