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1437756-97-2

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1437756-97-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1437756-97-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,7,7,5 and 6 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1437756-97:
(9*1)+(8*4)+(7*3)+(6*7)+(5*7)+(4*5)+(3*6)+(2*9)+(1*7)=202
202 % 10 = 2
So 1437756-97-2 is a valid CAS Registry Number.

1437756-97-2Downstream Products

1437756-97-2Relevant articles and documents

Ytterbium triflate promoted coupling of phenols and propiolic acids: Synthesis of coumarins

Fiorito, Serena,Epifano, Francesco,Taddeo, Vito A.,Genovese, Salvatore

, p. 2939 - 2942 (2016)

Coumarins are a well-known class of natural occurring and semi-synthetic products with reported important and effective pharmacological activities. In this Letter an improved method for the chemical synthesis of such compounds is described. Coumarins have been obtained in good to excellent yields under microwave irradiation and solvent-free conditions in a short time from differently substituted phenols and propiolic acids used as starting materials in the presence of Yb(OTf)3 hydrate 10% mol as the catalyst.

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