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639452-69-0

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639452-69-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 639452-69-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,9,4,5 and 2 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 639452-69:
(8*6)+(7*3)+(6*9)+(5*4)+(4*5)+(3*2)+(2*6)+(1*9)=190
190 % 10 = 0
So 639452-69-0 is a valid CAS Registry Number.

639452-69-0Relevant articles and documents

Mononuclear zinc(II) complexes of 2-((2-(piperazin-1-yl)ethylimino)methyl)- 4-substituted phenols: Synthesis, structural characterization, DNA binding and cheminuclease activities

Ravichandran,Gurumoorthy,Karthick,Kalilur Rahiman

, p. 147 - 157 (2014/03/21)

Four new zinc(II) complexes [Zn(HL1-4)Cl2] (1-4), where HL1-4 = 2-((2-(piperazin-1-yl)ethylimino)methyl)-4-substituted phenols, have been isolated and fully characterized using various spectro-analytical techniques. The X-

Solvent mediated hydrogen-bonded supramolecular network of a Cu(II) complex involving N2O donor ligand and terephthalate

Chakraborty, Jishnunil

experimental part, p. 199 - 203 (2011/06/24)

The title one-dimensional hydrogen-bonded coordination compound [Cu II(C13H17N3OBr)(C8H 5O4)].2H2O. CH3OH has been synthesized and characterized by single crystal X-ray diffraction study. The monomeric unit contains a square-planar CuII centre. The four coordination sites are occupied by a tridentate anionic Schiff base ligand (4-bromo-2-[(2- piperazin-1-yl-ethylimino)-methyl]-phenol) which furnishes an N2O-donor set, with the fourth position being occupied by the oxygen atom of an adjacent terephthalate unit. Two adjacent neutral molecules are linked through intermolecular N-H-O and O-H-N hydrogen bonds and generate a dimeric pair. Each dimeric pair is connected with each other via discrete water and methanol molecules by hydrogen bonding to form a one-dimensional supramolecular network.

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