Cas 1428586-63-3,7-phenyl-1,2,3,4-tetrahydrobenzo[b]indazolo[3,2-f][1,6]naphthyridine

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Check Digit Verification of cas no

The CAS Registry Mumber 1428586-63-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,8,5,8 and 6 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1428586-63:
(9*1)+(8*4)+(7*2)+(6*8)+(5*5)+(4*8)+(3*6)+(2*6)+(1*3)=193
193 % 10 = 3
So 1428586-63-3 is a valid CAS Registry Number.

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1428586-63-3Relevant academic research and scientific papers

Convenient synthesis of benzo[b]pyrazolo[5,1-f][1,6]naphthyridines by silver triflate catalyzed three-component reaction of 2-alkynyl-3- formylquinolines, tosylhydrazine and carbonyl compounds

Zahid, Muhammad,Iaroshenko, Viktor O.,Saghyan, Ashot S.,Fischer, Christine,Langer, Peter

, p. 3451 - 3458 (2013/04/24)

Benzo[b]pyrazolo[5,1-f][1,6]naphthyridines were prepared by silver triflate catalyzed one-pot cyclization of tosylhydrazine, carbonyl compounds and 2-alkynyl-3-formylquinolines, which are available by Sonogashira reaction of 2-chloro-3-formylquinoline.

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