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40030-85-1

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40030-85-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40030-85-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,0,3 and 0 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 40030-85:
(7*4)+(6*0)+(5*0)+(4*3)+(3*0)+(2*8)+(1*5)=61
61 % 10 = 1
So 40030-85-1 is a valid CAS Registry Number.

40030-85-1Relevant articles and documents

Formation of diazoketones and azines by improved oxidation of ketohydrazones using Cu(acac)2 as a catalyst

Ibata, Toshikazu,Singh, Girija S.

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

An efficient Cu(acac)2-catalyzed oxidation of ketohydrazones afforded the corresponding α-diazeketones or ketazines in high yields depending on the reaction conditions. However, the reaction of benzophenone hydrazone gave benzophenone azine without affording diphenyldiazomethane. The formation of azines is explained by intermediacy of carbenoid generated by the Cu(acac)2-catalyzed decomposition of diazo compounds.

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