97072-91-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97072-91-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,0,7 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 97072-91:
(7*9)+(6*7)+(5*0)+(4*7)+(3*2)+(2*9)+(1*1)=158
158 % 10 = 8
So 97072-91-8 is a valid CAS Registry Number.
97072-91-8Relevant articles and documents
Nuclear Spin-Spin Coupling via Nonbonded Interactions. 5. N-F Coupling
Mallory, Frank B.,Mallory, Clelia W.
, p. 4816 - 4819 (2007/10/02)
On the basis of the lone-pair orbital overlap theory that was developed earlier to account for the phenomenon of "through-space" F-F nuclear spin-spin coupling between intramolecularly crowded fluorine atoms, the exsistence of "through-space" N-F coupling