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133149-65-2

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133149-65-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133149-65-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,1,4 and 9 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 133149-65:
(8*1)+(7*3)+(6*3)+(5*1)+(4*4)+(3*9)+(2*6)+(1*5)=112
112 % 10 = 2
So 133149-65-2 is a valid CAS Registry Number.

133149-65-2Downstream Products

133149-65-2Relevant articles and documents

α-Cyanothioacetamide and its Derivatives in Heterocyclic Synthesis: Preparation of Several New 4-Oxoquinazoline Derivatives

Aziz, M. A. Abdel,Daboun, H. A.,Gawad, S. M. Abdel

, p. 610 - 618 (2007/10/02)

The reaction of α-cyanothioacetamide (1) or its methylthio derivative (2) with anthranilic acid led to the formation of 3,4-dihydro-4-oxoquinazolin-2-yl acetonitrile (3). 3 condensed with aromatic aldehydes to give arylidene derivatives (4a-d) which could be prepared also via the reaction of 2-thiocarbamoylcinnamonitriles (5a-d) or their methylthio derivatives (6a-d) with anthranilic acid. 3 reacted with cinnamonitrile derivatives (7a-h) and (12a-d) to yield pyrido--quinazoline derivatives (10a-h) and (15a-d) which could also be prepared by the reaction of (4a-d) with malononitrile (11a), benzoyl acetonitrile (11b) and ethylcyanoacetate (16), respectively.

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