79720-58-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 79720-58-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,7,2 and 0 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 79720-58:
(7*7)+(6*9)+(5*7)+(4*2)+(3*0)+(2*5)+(1*8)=164
164 % 10 = 4
So 79720-58-4 is a valid CAS Registry Number.
79720-58-4Relevant articles and documents
Synthetic Studies in Carbocyclic Systems : Part I - A new Synthesis of Nopinone
Murthi, G. S. S.,Mazumder, Alok
, p. 339 - 340 (2007/10/02)
Base-induced intramolecular nucleophilic displacement of the tosyloxy group of 4-isopropyl-7-tosyloxycyclohexanone affords nopinone , identical with an authentic specimen.
