191087-11-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 191087-11-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,0,8 and 7 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 191087-11:
(8*1)+(7*9)+(6*1)+(5*0)+(4*8)+(3*7)+(2*1)+(1*1)=133
133 % 10 = 3
So 191087-11-3 is a valid CAS Registry Number.
191087-11-3Relevant articles and documents
A New and Efficient Route to Amino Derivatives of [1,6]- and [2,7]Naphthyridones
Nemazany, Alexei,Haider, Norbert
, p. 397 - 400 (1997)
Reaction of N-substituted amides of 2-chloro- or 4-chloronicotinic acid with CH-acidic nitriles in the presence of a base provides a convenient access to amino derivatives of 1,6-naphthyrid-5(6H)-one, compounds of type 4 and 5, or 2,7-naphthyrid-1(2H)-one
