1272972-08-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1272972-08-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,7,2,9,7 and 2 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1272972-08:
(9*1)+(8*2)+(7*7)+(6*2)+(5*9)+(4*7)+(3*2)+(2*0)+(1*8)=173
173 % 10 = 3
So 1272972-08-3 is a valid CAS Registry Number.
1272972-08-3Relevant academic research and scientific papers
Synthesis of some new chromene derivatives, part 6
Fadda,Youssif
experimental part, p. 677 - 694 (2011/04/15)
Reactions of 2-amino-5-oxo-2-phenyl-5,6,7,8-tetrahydro-4H-chromen-3- carbonitrile (1a) with a variety of reagents leading to the synthesis of chromens have been investigated to explore the use of this exceptionally reactive nitrile in heterocyclic synthes
