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40832-53-9

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40832-53-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40832-53-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,8,3 and 2 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 40832-53:
(7*4)+(6*0)+(5*8)+(4*3)+(3*2)+(2*5)+(1*3)=99
99 % 10 = 9
So 40832-53-9 is a valid CAS Registry Number.

40832-53-9Relevant articles and documents

Studies in Tertiary Amine Oxides. Part V - Carbon-13 Nuclear Magnetic Resonance Spectra of some N-Aryl Tertiary Amines, the Corresponding N-Oxides and the Meisenheimer Rearrangement Products

Khuthier, Abdul-Hussain,Al-Rawi, Jasim M. A.,Al-Kazzaz, Abdul K.,Al-Iraqi, Mohammed A.

, p. 104 - 108 (2007/10/02)

The carbon-13 NMR spectra of some N-(2- or 4-nitrophenyl) tertiary amines and their corresponding N-oxides have been analysed.These N-oxides undergo thermal rearrangement to O-arylhydroxylamines, for which the 13C NMR spectral assignments were also carried out.The N-oxidation effect on the aromatic and aliphatic fragments is calculated.

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