64717-11-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 64717-11-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,7,1 and 7 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 64717-11:
(7*6)+(6*4)+(5*7)+(4*1)+(3*7)+(2*1)+(1*1)=129
129 % 10 = 9
So 64717-11-9 is a valid CAS Registry Number.
64717-11-9Relevant articles and documents
Solvent-free asymmetric anhydride opening in a ball mill
Rantanen, Toni,Schiffers, Ingo,Bolm, Carsten
, p. 592 - 597 (2007)
The mechanochemical technique of ball milling has been applied to the asymmetric opening of meso-anhydrides, mediated by the cinchona alkaloid quinidine. A simple workup procedure affords the products, optically active dicarboxylic acid monoesters, in hig