Cas 106657-33-4,α-(4-quinazolinylthio)butyrophenone

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Check Digit Verification of cas no

The CAS Registry Mumber 106657-33-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,6,6,5 and 7 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 106657-33:
(8*1)+(7*0)+(6*6)+(5*6)+(4*5)+(3*7)+(2*3)+(1*3)=124
124 % 10 = 4
So 106657-33-4 is a valid CAS Registry Number.

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106657-33-4Relevant academic research and scientific papers

EXTRUSION REACTIONS-VIII. A FACILE SYNTHESIS OF 4-ALKYL QUINAZOLINES AND 1-METHYL-2-ARYL-4-QUINOLONES

Singh, Harjit,Aggarwal, Sunil K.,Malhotra, Nageshwar

, p. 1139 - 1144 (1986)

With aq. sodium hydroxide, ο-acetophenones 4b (R'=H, R=Ar) or ο-(4-quinazolinyl)acetophenones 4a (R'=Me, Et; R=Ar) provide 4-alkylquinazolines 6 but 1-methyl-4-phenacyl or phenacylidene-3H-quinazolinium derivatives 10a or 10b give N-methyl-4-quinolone derivatives 11.

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