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521075-50-3

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521075-50-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 521075-50-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,2,1,0,7 and 5 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 521075-50:
(8*5)+(7*2)+(6*1)+(5*0)+(4*7)+(3*5)+(2*5)+(1*0)=113
113 % 10 = 3
So 521075-50-3 is a valid CAS Registry Number.

521075-50-3Downstream Products

521075-50-3Relevant articles and documents

A convenient and expedient synthesis of 3-aryl-2H-azirine-2-carboxaldehydes

Alajari?n, Mateo,Orenes, Rau?l-A?ngel,Vidal, A?ngel,Pastor, Aurelia

, p. 49 - 52 (2007/10/03)

A new procedure for the synthesis of 3-aryl-2H-azirine-2-carboxaldehydes starting from cinnamyl alcohols is disclosed. This novel approach implies milder conditions and higher overall yields as compared to the previously reported methods. The key step, i.e. the formation of the azirine ring, involves the treatment of (Z)-3-aryl-3-azidoprop-2-en-1-ols with MnO2.

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