206120-70-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 206120-70-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,6,1,2 and 0 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 206120-70:
(8*2)+(7*0)+(6*6)+(5*1)+(4*2)+(3*0)+(2*7)+(1*0)=79
79 % 10 = 9
So 206120-70-9 is a valid CAS Registry Number.
206120-70-9Relevant articles and documents
O-nitrophenyltriflates in quinoline synthesis : Easy access to a streptonigrin synthon
Holzapfel, Cedric W.,Dwyer, Catherine
, p. 215 - 219 (2007/10/03)
An efficient route to a wide range of 2-hydroxyquinolines from o-nitrophenyltriflates via a Heck reaction is reported, with emphasis on the preparation of a synthetic equivalent of the streptonigrin AB ring system.