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87556-01-2

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87556-01-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87556-01-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,5,5 and 6 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 87556-01:
(7*8)+(6*7)+(5*5)+(4*5)+(3*6)+(2*0)+(1*1)=162
162 % 10 = 2
So 87556-01-2 is a valid CAS Registry Number.

87556-01-2Downstream Products

87556-01-2Relevant articles and documents

Photoactive Cryptands Synthesis of the Sodium Cryptates of Macrobicyclic Ligands Containing Bipyridine and Phenanthroline Groups

Rodriguez-Ubis, Juan-Carlos,Alpha, Beatrice,Plancherel, Dominique,Lehn, Jean-Marie

, p. 2264 - 2269 (1984)

The NaBr cryptates of five macrobicyclic ligands containing bipyridine (bpy) and phenanthroline (phen) groups, i.e. of 1 2 3 4 and 5, have been prepared. 1, 2, 4 and 5 have been obtained in high yield by condensation of bis(bromomethyl)bipyridine 6 or -phenanthroline 9 with the corresponding macrocyclic diamines in presence of Na2CO3.Direct access to the NaBr complexes of the symmetrical cryptands 1 and 3 was achieved by a one-step macrobicyclisation procedure.The metal-ion complexes of ligands 1-5 have the attractive feature of combining the cation inclusion nature of cryptates with the photoactivity of bipyridine and phenanthroline groups; they may thus be expected to possess a variety of interesting physical and chemical properties.

Podands, Coronands and Cryptands as New Complex-Ligands in Photoelectron Transfer Reactions. Synthesis and Photophysical Studies

Duerr, Heinz,Zengerle, Klaus,Trierweiler, Hans-Peter

, p. 361 - 368 (2007/10/02)

Podands, coronands and cryptands containing 2,2'-bipyridine-units were synthesized.These compounds can be used as ligands in Ru(II)-polypyridinecomplexes.This new route principally allows the preparation of tris-heteroleptic complexes using the appropriate cryptands.Ru(II)-polypyridines RuL3(2+) (e.g.Ru(bpy)3(2+)) are interesting as sensitizers in photochemical water cleavage.Compared to Ru(bpy)3(2+), the photoanationrate should be reduced in the Ru(cryp)(2+) complex. - Keywords: Podands, Coronands, Cryptands, Photosensitizer, Photoanation

A VERSATILE ONE-POT SYNTHESIS OF SYMMETRICAL N-TOSYLAZAMACROCYCLES

Pappalardo, Sebastiano,Bottino, Francesco,Grazia, Michele Di,Finocchiaro, Paolo,Mamo, Antonino

, p. 1881 - 1884 (2007/10/02)

A variety of title compounds (azacrown ethers, pyridino-azacrown analogues and azacyclophanes) have been synthesized in moderate to good yield by coupling appropriate bis(halomethyl) or bis(tosylate ester) precursors with tosylamide monosodium salt.A revised mechanism is proposed.

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