20537-03-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20537-03-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,5,3 and 7 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 20537-03:
(7*2)+(6*0)+(5*5)+(4*3)+(3*7)+(2*0)+(1*3)=75
75 % 10 = 5
So 20537-03-5 is a valid CAS Registry Number.
20537-03-5Relevant articles and documents
Neighbour Group Participation with Reductions and Hydride Abstractions - Part 2
Moehrle, H.,Kamper, CH.
, p. 673 - 681 (2007/10/02)
The reduction of N-(2-aminoalkyl)lactams with diisobutylaluminium hydride and the hydride ion abstraction of the corresponding diamines give under neighbour group participation the fused aminals.
