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1492-51-9

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1492-51-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1492-51-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,4,9 and 2 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1492-51:
(6*1)+(5*4)+(4*9)+(3*2)+(2*5)+(1*1)=79
79 % 10 = 9
So 1492-51-9 is a valid CAS Registry Number.

1492-51-9Downstream Products

1492-51-9Relevant articles and documents

Aminopyrine and Antipyrine Free Radical-cations: Pulse Radiolysis Studies of One-electron Transfer Reactions

Forni, Luigi G.,Mora-Arellano, Victor O.,Packer, John E.,Willson, Robin L.

, p. 1579 - 1584 (2007/10/02)

Absolute rate constants for the reaction of a variety of electrophilic free radicals with the pyrazoline derivatives aminopyrine and antipyrine have been measured by pulse radiolysis.In the case of aminopyrine the resulting radical cation is a particularly stable species ε325 5.35*103 dm3 mol-1 cm-1).Both compounds are readily oxidised to their respective radical-cations with the one-electron oxidation potential of antipyrine (E0 1.1-1.6 V) being higher than that of aminopyrine (E0 0.26-0.5 V).Studies of the reaction of the radical-cations with reducing agents suggest that aminopyrine in particular may prove to be a useful reference compound in studies of free radical one-electron oxidations.

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