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14080-52-5

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14080-52-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 14080-52-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,4,0,8 and 0 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 14080-52:
(7*1)+(6*4)+(5*0)+(4*8)+(3*0)+(2*5)+(1*2)=75
75 % 10 = 5
So 14080-52-5 is a valid CAS Registry Number.

14080-52-5Downstream Products

14080-52-5Relevant articles and documents

A practical synthesis of 5-functionalized thieno[2,3-d]pyrimidines

Wilding, Birgit,Faschauner, Stefan,Klempier, Norbert

, p. 4486 - 4489 (2015/06/30)

Abstract The synthesis of 5-hydroxymethyl-, 5-acetoxymethyl-, 5-formyl- and 5-cyanothieno[2,3-d]pyrimidines, the (methyl)-5-carboxylate, and the respective amide functionality was accomplished by building up the functionalized molecule starting from appropriately substituted thiophene precursors. A similar strategy starting from the pyrimidine precursor and subsequent direct functionalization (formylation and cyanation) of the thieno[2,3-d]pyrimidine parent compound in position 5 was found to be less feasible.

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