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1,4-Benzenediamine, N,N''-[(4,6-dinitro-1,3-phenylene)dimethylidyne]bis[N',N'-dimethyl-, N,N''-dioxide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

67640-41-9

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67640-41-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67640-41-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,6,4 and 0 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 67640-41:
(7*6)+(6*7)+(5*6)+(4*4)+(3*0)+(2*4)+(1*1)=139
139 % 10 = 9
So 67640-41-9 is a valid CAS Registry Number.

67640-41-9Relevant academic research and scientific papers

Synthesis and characterization of 2,7-bis(2-pyridyl)-1,8-diazaanthraquinone - A redox-active ligand designed for the construction of supramolecular grids

Jain, Rajsapan,Caldwell, Sharon L.,Louie, Anika S.,Hicks, Robin G.

, p. 1263 - 1267 (2008/01/27)

Double condensation of 2-acetylpyridine with 1,3-diaminobenzene-4,6- dicarboxaldehyde affords 2,7-bis(2-pyridyl)-1,8-diazaanthracene, which was subsequently oxidized to the corresponding quinone. Electrochemical studies indicate two reversible reduction processes corresponding to semiquinone and hydroquinonate formation. Electron-withdrawing pyridine groups and the nitrogen atoms make this somewhat more easily reduced than anthraquinone. This compound is redox-active and can be reduced to its radical anion, a potential spin-bearing ligand for the construction of [2 x 2] metallo-grid structures.

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