39996-43-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 39996-43-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,9,9 and 6 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 39996-43:
(7*3)+(6*9)+(5*9)+(4*9)+(3*6)+(2*4)+(1*3)=185
185 % 10 = 5
So 39996-43-5 is a valid CAS Registry Number.
39996-43-5Relevant articles and documents
N-Amination of 2,6-Di-tert-butylpyridine
Gawinecki, Ryszard,Kanner, Bernard
, p. 35 - 42 (1994)
Despite its low nucleophilicity 2,6-di-tert-butylpyridine (DTBP) easily undergoes N-amination.Other hindered pyridines react similarly.Comparison of the NMR carbon chemical shifts of 2,6-disubstituted 1-aminopyridinium perchlorates and those of the respec
