42522-05-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42522-05-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,5,2 and 2 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 42522-05:
(7*4)+(6*2)+(5*5)+(4*2)+(3*2)+(2*0)+(1*5)=84
84 % 10 = 4
So 42522-05-4 is a valid CAS Registry Number.
42522-05-4Relevant articles and documents
Demethylation of 2,4-dimethoxyquinolines: the synthesis of atanine.
Jones, Keith,Roset, Xavier,Rossiter, Sharon,Whitfield, Philip
, p. 4380 - 4383 (2007/10/03)
The synthesis of the quinoline alkaloid atanine 6, by selective demethylation of the 2,4-dimethoxyquinoline 11 is presented. An alternative demethylation utilising a thiolate anion leads to the regioisomeric 4-hydroxyquinoline 13.
