78016-83-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78016-83-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,0,1 and 6 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 78016-83:
(7*7)+(6*8)+(5*0)+(4*1)+(3*6)+(2*8)+(1*3)=138
138 % 10 = 8
So 78016-83-8 is a valid CAS Registry Number.
78016-83-8Relevant articles and documents
Synthesis of Heterocycles : Part IV - Pyridopyrimidines
Rao, A. Subba,Mitra, R. B.
, p. 159 - 160 (2007/10/02)
5,7-Disubstituted pyridopyrimidine-2,4-diones (Va-c) have been synthesized by a new route involving Michael addition of 1,3-dimethyl-6-iminouracil (I) to α-enones (IIa-c).Reaction of I and benzalacetone (IId) furnishes 9H-pyrimido-quinoline derivatives (VI, VII).
