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121556-95-4

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121556-95-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121556-95-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,5,5 and 6 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 121556-95:
(8*1)+(7*2)+(6*1)+(5*5)+(4*5)+(3*6)+(2*9)+(1*5)=114
114 % 10 = 4
So 121556-95-4 is a valid CAS Registry Number.

121556-95-4Upstream product

121556-95-4Downstream Products

121556-95-4Relevant articles and documents

TAUTOMERISM AND CONFIGURATIONAL ISOMERISM IN DIOXIMES OF β-DICARBONYL COMPOUNDS

Ershov, A. Yu.,Yakimovich, S. I.,Zelenin, K. N.,Zerova, I. V.

, p. 2062 - 2070 (2007/10/02)

According to the data from 1H and 13C NMR spectroscopy, the dioximes of β-carbonyl compounds exist in solutions in the dioxime form, represented by a series of configurational isomers, or as a mixture of the dioxime and the cyclic isoxazoline forms.The conditions for the appearance of the ring-chain equilibrium in the dioximes of β-dicarbonyl compounds were determined, and the dependence of the tautomeric and configurational composition on the structure of the β-dicarbonyl component and the nature of the solvent was studied.

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