199274-90-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199274-90-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,2,7 and 4 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 199274-90:
(8*1)+(7*9)+(6*9)+(5*2)+(4*7)+(3*4)+(2*9)+(1*0)=193
193 % 10 = 3
So 199274-90-3 is a valid CAS Registry Number.
199274-90-3Relevant articles and documents
Azoles. Part 41 [1]. An improved methodology for the vicarious nucleophilic substitution in some nitroazoles
Bernard
, p. 1413 - 1420 (2007/10/03)
Improved procedures, including either specific reaction conditions or the use of protecting groups, were described for the vicarious nucleophilic substitution of hydrogen in some unreactive or weakly reactive nitroazoles.