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134855-48-4

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134855-48-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134855-48-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,8,5 and 5 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 134855-48:
(8*1)+(7*3)+(6*4)+(5*8)+(4*5)+(3*5)+(2*4)+(1*8)=144
144 % 10 = 4
So 134855-48-4 is a valid CAS Registry Number.

134855-48-4Downstream Products

134855-48-4Relevant articles and documents

The Liquid-Crystalline Properties of Copper(II) Complexes of β-Diketones

Thompson, Neil J.,Gray, George W.,Goodby, John W.,Toyne, Kenneth J.

, p. 109 - 132 (2007/10/02)

The preparation of several novel copper(II) complexes of β-diketones is described.Complexes of increasing molecular width have been prepared and the effect of molecular shape on the mesophase types and transition temperatures is discussed.All the liquid-crystalline complexes exhibit nematic mesophases (monotropic for three-ring ligands and enantiotropic for four-ring ligands) with one exception which shows a smectic A phase.The liquid crystalline properties of the ligands are also discussed with respect to the way in which their molecular geometry affects the type of mesophase formed.Keywords: Copper(II) complexes, β-diketones, metallo-mesogens

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