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93322-75-9

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93322-75-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 93322-75-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,3,2 and 2 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 93322-75:
(7*9)+(6*3)+(5*3)+(4*2)+(3*2)+(2*7)+(1*5)=129
129 % 10 = 9
So 93322-75-9 is a valid CAS Registry Number.

93322-75-9Downstream Products

93322-75-9Relevant academic research and scientific papers

SINTESIS DE NAFTAZARINAS HIDROXILADAS

Farina, F.,Fernandez, E.,Gimeno, V.,Valderrama, J. A.

, p. 220 - 229 (2007/10/03)

A variety of naphthazarines type 4 and 8 were prepared through Diels-Alder reactions of substituted 1,4-benzoquinones with 1,3-dienes.Thiele-Winter reaction of 5 afforded 6 which by chromic oxidation yielded naphthazarines 7 and/or naphthoquinones 9.Hydroxynaphthazarines of type 8 were synthesized from 5 through 2,3-epoxides of the type 14.The structural study of the products, by 1H-NMR, showed the typical tautomerism of the naphthazarine system.Palabras clave: hidroxinaftazarinas, reaccion Diels-Alder, reaccion Thiele-Winter

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