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105393-84-8

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105393-84-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 105393-84-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,3,9 and 3 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 105393-84:
(8*1)+(7*0)+(6*5)+(5*3)+(4*9)+(3*3)+(2*8)+(1*4)=118
118 % 10 = 8
So 105393-84-8 is a valid CAS Registry Number.

105393-84-8Relevant articles and documents

Ring Transformation of Isoxazoles into Furan and Pyran Derivatives

Ciller, Juan A.,Martin, Nazario,Seoane, Carlos,Soto, Jose L.

, p. 2581 - 2584 (2007/10/02)

A ring transformation of isoxazole into 3,5-dicyano-4H-pyran-2-amines (4) and N-arylidenefuran-2-amines (7) is reported.It involves a ring opening of the isoxazole ring in the presence of an aromatic aldehyde, leading to 2-arylidene-3-oxopropanenitrile (2), followed by nucleophilic attack by either cyanide or propanedinitrile and then heterocyclization.The reaction can also be applied to 5-substituted isoxazoles.

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