649570-72-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 649570-72-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,9,5,7 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 649570-72:
(8*6)+(7*4)+(6*9)+(5*5)+(4*7)+(3*0)+(2*7)+(1*2)=199
199 % 10 = 9
So 649570-72-9 is a valid CAS Registry Number.
649570-72-9Relevant academic research and scientific papers
Efficient Nazarov Cyclizations of 2-Alkoxy-1,4-pentadien-3-ones
Liang, Guangxin,Gradl, Stefan N.,Trauner, Dirk
, p. 4931 - 4934 (2007/10/03)
(Equation presented) Expeditious and high-yielding Nazarov cyclizations of 2-alkoxy-1,4-pentadien-3-ones are described. An example of a catalytic asymmetric Nazarov cyclization is presented.
