Cas 22453-83-4,3,3'-(1,4-Phenylene)bis(4-oxo-2-thioxo-1,2,3,4-tetrahydroquinazoline)

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Check Digit Verification of cas no

The CAS Registry Mumber 22453-83-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,4,5 and 3 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 22453-83:
(7*2)+(6*2)+(5*4)+(4*5)+(3*3)+(2*8)+(1*3)=94
94 % 10 = 4
So 22453-83-4 is a valid CAS Registry Number.

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22453-83-4Relevant academic research and scientific papers

Synthesis and antitumor activity of some novel quinazoline derivatives bearing the biologically active thione moiety

Ghorab, Moustafa M.,Barakat, Saber El-Sayed,Saker, Helmy M.,Abd Rabo, Mahmoud M.

, p. 665 - 670 (2008/02/12)

The reactivity of isothiocyanate 1 towards some nitrogen nucleophils was investigated. Thus, interaction of 1 with p-flouroaniline, benzylamine, 2-aminopyridine, and 4-aminoantipyrine yielded the corresponding quinazoline derivatives 37, respectively. Tri

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