Cas 53545-24-7,Butanoic acid, 2-[(methylthio)(phenylamino)methylene]-3-oxo-, ethyl ester

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Check Digit Verification of cas no

The CAS Registry Mumber 53545-24-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,5,4 and 5 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 53545-24:
(7*5)+(6*3)+(5*5)+(4*4)+(3*5)+(2*2)+(1*4)=117
117 % 10 = 7
So 53545-24-7 is a valid CAS Registry Number.

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53545-24-7Relevant academic research and scientific papers

Preparation of thieno[2,3-b]pyrroles starting from ketene-N,S-acetals

Sommen, Geoffroy,Comel, Alain,Kirsch, Gilbert

, p. 1557 - 1564 (2003)

Thieno[2,3-b]pyrroles 4 can easily be synthesised in two different ways by using phenyl isothiocyanate and activated methylene compounds. The priority of the formation of the thiophene or pyrrole ring is investigated.

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