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400053-10-3

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400053-10-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 400053-10-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,0,0,5 and 3 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 400053-10:
(8*4)+(7*0)+(6*0)+(5*0)+(4*5)+(3*3)+(2*1)+(1*0)=63
63 % 10 = 3
So 400053-10-3 is a valid CAS Registry Number.

400053-10-3Relevant articles and documents

One-pot quinazolin-4-yl-thiourea synthesis via N-(2-cyanophenyl)benzimidoyl isothiocyanate

Fathalla,Cajan,Marek,Pazdera

, p. 588 - 602 (2001)

1-substituted-3-(2-phenylquinazolin-4-yl) thioureas (7) were produced by an intramolecular cycloaddition reaction of 1-substitued-3-[(2-cyanophenylimino) phenylmethyl] thioureas (3). These compounds in turn were prepared by the reaction of N-(2-cyanophenyl)benzimidoyl isothiocyanate (2) with primary amines. The structures of products 7 were confirmed by FTIR, 1H-NMR, 13C-NMR, mass spectroscopy and X-ray crystallography.

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