Cas 1373510-89-4,C14H10ClN3O4

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Check Digit Verification of cas no

The CAS Registry Mumber 1373510-89-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,7,3,5,1 and 0 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1373510-89:
(9*1)+(8*3)+(7*7)+(6*3)+(5*5)+(4*1)+(3*0)+(2*8)+(1*9)=154
154 % 10 = 4
So 1373510-89-4 is a valid CAS Registry Number.

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1373510-89-4Relevant academic research and scientific papers

Cyclisation of 2-(2-aminophenyl)quinazolin-4(3H)-one reexamined: Formation of isomeric angular fused quinazolinoquinazolinones and their spectroscopic identification

Venkateswarlu, Somepalli,Satyanarayana, Meka,Murthy, Gandrothu Narasimha,Siddaiah, Vidavalur

scheme or table, p. 2643 - 2646 (2012/06/30)

Cyclisation of 2-(2-aminophenyl)quinazolin-4(3H)-ones on to N3 and on to N1 leading to 6-alkyl-(8H)-quinazolino[4,3-b]quinazolin-8- one and 6-alkyl-(13H)-quinazolino[3,4-a]quinazolin-13-one, respectively was described for the first time. The differences in the IR and carbon NMR data of these isomeric fused quinazolinoquinazolinones afford a useful method for distinguishing between the two series.

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