67553-12-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 67553-12-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,5,5 and 3 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 67553-12:
(7*6)+(6*7)+(5*5)+(4*5)+(3*3)+(2*1)+(1*2)=142
142 % 10 = 2
So 67553-12-2 is a valid CAS Registry Number.
67553-12-2Relevant articles and documents
Asymmetric michael reactions : Enantioselective synthesis of δ-oxo-acids
Michelon, Francois,Pouilhes, Annie,Van Bac, Nguyen,Langlois, Nicole
, p. 1743 - 1746 (1992)
β-substituted and α,β-disubstituted δ-oxo acids are synthesized with high enantiomeric excess from chiral 2-propenyl oxazolines 8 and 11, whilst 2-vinyl oxazlines 7 and 10 are less efficient asymmetric inductors.