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271789-17-4

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271789-17-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 271789-17-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,1,7,8 and 9 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 271789-17:
(8*2)+(7*7)+(6*1)+(5*7)+(4*8)+(3*9)+(2*1)+(1*7)=174
174 % 10 = 4
So 271789-17-4 is a valid CAS Registry Number.

271789-17-4Downstream Products

271789-17-4Relevant articles and documents

2,2'-Bipyridine lariat calixcrowns: A new class of encapsulating ligands forming highly luminescent Eu3+ and Tb 3+ complexes

Fischer, Claudia,Sarti, Gianluca,Casnati, Alessandro,Carrettoni, Barbara,Manet, Ilse,Schuurman, Ruud,Guardigli, Massimo,Sabbatini, Nanda,Ungaro, Rocco

, p. 1026 - 1034 (2007/10/03)

A new class of calix[4]arene crown ethers with one or two bipyridines appended to the polyether ring (lariat calixcrowns) have been designed and synthesized; the luminescence properties of their Eu3+ and Tb3+ complexes have been studied in acetonitrile. In this solvent, long lifetimes for the metal emitting states and high metal-luminescence intensities obtained upon ligand excitation have been observed in both Eu3+ and Tb3+ complexes. The association constants in methanol have been determined for some of the complexes studied.

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