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54943-17-8

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54943-17-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54943-17-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,9,4 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 54943-17:
(7*5)+(6*4)+(5*9)+(4*4)+(3*3)+(2*1)+(1*7)=138
138 % 10 = 8
So 54943-17-8 is a valid CAS Registry Number.

54943-17-8Downstream Products

54943-17-8Relevant articles and documents

Synthesis of thienopyridine and furopyridine derivatives of therapeutic interest

Maffrand,Eloy

, p. 483 - 486 (2007/10/05)

5-Benzyl-4,5,6,7-tetrahydrothieno [3,2-c] pyridines and analogous furopyridines were synthesized by NaBH4 reduction of the corresponding quaternary ammonium salts (method A). In the former series, the same derivatives were obtained by condensing benzyl halides with tetrahydrothienopyridine (method B).

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