216970-80-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 216970-80-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,9,7 and 0 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 216970-80:
(8*2)+(7*1)+(6*6)+(5*9)+(4*7)+(3*0)+(2*8)+(1*0)=148
148 % 10 = 8
So 216970-80-8 is a valid CAS Registry Number.
216970-80-8Relevant academic research and scientific papers
A convenient synthesis of highly substituted 2-pyridones
Collins, Ian,Castro, Jose L.
, p. 4069 - 4072 (2007/10/03)
A rapid and convenient synthesis of the 3-trifluoromethanesulfonyloxy- 2-pyridone 2, one of the first examples of this class of compound, was achieved by Vilsmeier formylation and cyclisation of the acyl enamine 6. The triflate 2 was found to undergo a ra
