426840-24-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 426840-24-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,6,8,4 and 0 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 426840-24:
(8*4)+(7*2)+(6*6)+(5*8)+(4*4)+(3*0)+(2*2)+(1*4)=146
146 % 10 = 6
So 426840-24-6 is a valid CAS Registry Number.
426840-24-6Relevant articles and documents
Very efficient one-pot conversion of N-aminophthalimide derivatives into the corresponding N-amino-di-tert-butyl imidodicarbonates
Brosse, Nicolas,Jamart-Grégoire, Brigitte
, p. 249 - 251 (2002)
The phthaloyl group can be efficiently converted in very mild conditions into bis-tert-butyloxycarbonyl group using MeNH2, then Boc2O/DMAP, in a one-flask protocol.
