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408337-71-3

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408337-71-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 408337-71-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,8,3,3 and 7 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 408337-71:
(8*4)+(7*0)+(6*8)+(5*3)+(4*3)+(3*7)+(2*7)+(1*1)=143
143 % 10 = 3
So 408337-71-3 is a valid CAS Registry Number.

408337-71-3Relevant articles and documents

Synthesis of fluorescent diphenylanthracene-based calix[4]arene derivatives and their complexation with alkali metal cations

Baki?, Marina Tranfi?,Leko, Katarina,Cindro, Nikola,Portada, Tomislav,Hrenar, Tomica,Frkanec, Leo,Horvat, Gordan,Po?ar, Josip,Tomi?i?, Vladislav

, p. 711 - 725 (2018/05/07)

Two novel fluorescent calix[4]arenes comprising diphenylanthracene moiety at the lower rim were synthetized and their complexation with alkali metal cations in acetonitrile/dichloromethane and methanol/dichloromethane mixtures (φ = 0.5) was studied experimentally and by classical molecular dynamics and quantum chemical calculations. The monosubstituted calixarene derivative (L1) proved to be a poor cation receptor, whereas the ester-based macrocycle (L2) exhibited rather high affinity towards lithium, sodium and potassium cations, particularly in MeCN/CH2Cl2. All complexation reactions were enthalpically controlled, whereby the overall stability was the largest in the case of sodium complex. The computational investigations provided an additional insight into the complexation properties and structures of complex species. The molecular dynamics simulations indicated the occurrence of inclusion of solvent molecules in the calixarene hydrophobic cavity of the free and complexed ligand, which was found to significantly affect the complexation equilibria.

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