189580-68-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189580-68-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,5,8 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 189580-68:
(8*1)+(7*8)+(6*9)+(5*5)+(4*8)+(3*0)+(2*6)+(1*8)=195
195 % 10 = 5
So 189580-68-5 is a valid CAS Registry Number.
189580-68-5Relevant articles and documents
Electrochemical removal of the picolinoyl group under mild acidic conditions, application to the protection of amines in peptide synthesis
Auzeil, Nicolas,Dutruc-Rosset, Gilles,Largeron, Martine
, p. 2283 - 2286 (1997)
The picolinoyl group can be used as a convenient protective group for amines in peptide chemistry. Deprotection is performed by electrochemical reduction under mild acidic conditions.
