57267-18-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57267-18-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,2,6 and 7 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 57267-18:
(7*5)+(6*7)+(5*2)+(4*6)+(3*7)+(2*1)+(1*8)=142
142 % 10 = 2
So 57267-18-2 is a valid CAS Registry Number.
57267-18-2Relevant articles and documents
Efficient oxidative radical spirolactamization
Ibarra-Rivera, Tannya R.,Gamez-Montano, Rocio,Miranda, Luis D.
, p. 3485 - 3487 (2008/03/12)
An efficient xanthate-based method for the preparation of azaspirocyclic cyclohexadienones via an ipso oxidative radical cyclization of p-oxygenated N-benzylacetamides and N-phenetylacetamide is described. The Royal Society of Chemistry.