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354556-40-4

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354556-40-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 354556-40-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,5,4,5,5 and 6 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 354556-40:
(8*3)+(7*5)+(6*4)+(5*5)+(4*5)+(3*6)+(2*4)+(1*0)=154
154 % 10 = 4
So 354556-40-4 is a valid CAS Registry Number.

354556-40-4Downstream Products

354556-40-4Relevant articles and documents

Some reactions of 2-functionalized 3-amino-4-aryl-6-(2′-thienyl)-thieno[2,3-B]-pyridines: Synthesis of new pyridothienopyrimidines, pyridothienotriazines and related fused tetracyclic systems

Abdel-Rahman,Bakhite,Mohamed,Thabet

, p. 89 - 106 (2003)

4-Aryl-3-cyano-6-(2′-thienyl)-pyridine-2(1H)-thiones (2a-c) were prepared and reacted with chloroacetonitrile or chloroacetamide to furnish 3-amino-4-aryl-6-(2′-thienyl)-thieno[2,3-b]pyridine-2-carbonitriles (4a-c) and 2-carboxamide analogs 6a-c respectiv

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