134680-78-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134680-78-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,6,8 and 0 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 134680-78:
(8*1)+(7*3)+(6*4)+(5*6)+(4*8)+(3*0)+(2*7)+(1*8)=137
137 % 10 = 7
So 134680-78-7 is a valid CAS Registry Number.
134680-78-7Relevant articles and documents
Versatile synthesis of 2-aryltriazolothiazolopyridines
Prasad, V S R,Sambaiah, T,Reddy, K Kondal
, p. 517 - 518 (2007/10/02)
The reaction of 2-aminothiazolopyridines (1) with benzonitrile in the presence of anhyd AlCl3 give N-(thiazolopyridin-2-yl)arylamidines (2) which on cyclodehydrogenation with lead tetraacetate in dry benzene afford 2-aryltriazolothiazolopyridines (4).