203112-98-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 203112-98-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,1,1 and 2 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 203112-98:
(8*2)+(7*0)+(6*3)+(5*1)+(4*1)+(3*2)+(2*9)+(1*8)=75
75 % 10 = 5
So 203112-98-5 is a valid CAS Registry Number.
203112-98-5Relevant articles and documents
Strategy for a seven-membered ring closure with bicyclic framework
Duffault, Jean-Marc
, p. 33 - 34 (2007/10/03)
Radical-induced cyclisations to form 7-membered rings with bicyclic framework were achieved by tributyltin hydride (TBTH) and α,α′-azobis(isobutyronitrile) (AIBN).
