Cas 26233-42-1,(1-phenyl-ethylidene)-carbonohydrazide

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Check Digit Verification of cas no

The CAS Registry Mumber 26233-42-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,2,3 and 3 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 26233-42:
(7*2)+(6*6)+(5*2)+(4*3)+(3*3)+(2*4)+(1*2)=91
91 % 10 = 1
So 26233-42-1 is a valid CAS Registry Number.

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26233-42-1Relevant articles and documents

Carbonohydrazones and Their Ring-Chain Tautomerism

Zelenin, K. N.,Alekseev, V. V.,Kuznetsova, O. B.,Saminskaya, A. G.,Yakimovich, S. I.,Zerova, I. V.

, p. 357 - 363 (2007/10/03)

Monohydrazones derived from carbonohydrazide and monocarbonyl compounds exist in solution as tautomeric mixtures of the hydrazone and hexahydro-1,2,4,5-tetrazine forms. Monohydrazones of β-dicarbonyl compounds have the structure of the corresponding 5-hyd

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CAS

26233-42-1