457069-06-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 457069-06-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,5,7,0,6 and 9 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 457069-06:
(8*4)+(7*5)+(6*7)+(5*0)+(4*6)+(3*9)+(2*0)+(1*6)=166
166 % 10 = 6
So 457069-06-6 is a valid CAS Registry Number.
457069-06-6Relevant articles and documents
Novel 2-pyridone synthesis via nucleophilic addition of malonic esters to alkynyl imines
Hachiya, Iwao,Ogura, Kana,Shimizu, Makoto
, p. 2755 - 2757 (2007/10/03)
(Matrix presented) A novel 2-pyridone synthesis via nucleophilic addition of malonic esters to alkynyl imines has been developed. The reaction of dialkylalkyl sodiomalonates with alkynyl imines provided 2-pyridones in good to excellent yields.