Cas 851908-75-3,2,6-bis<3-(p-hydroxyphenyl)-1-oxoprop-2-enyl>pyridine

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Check Digit Verification of cas no

The CAS Registry Mumber 851908-75-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,1,9,0 and 8 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 851908-75:
(8*8)+(7*5)+(6*1)+(5*9)+(4*0)+(3*8)+(2*7)+(1*5)=193
193 % 10 = 3
So 851908-75-3 is a valid CAS Registry Number.

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151358-73-5 4',4'''-bis(p-hydroxyphenyl)-2,2':6',2'':6'',2''':6''',2''''-quinquepyridine

851908-75-3Relevant academic research and scientific papers

Mono- and Di-nuclear Helical Complexes of 2,2':6',2'':6'',2''':6''',2''''-Quinquepyridine (qpy) and its 4',4'''-Disubstituted Derivatives; Crystal and Molecular Structures of 2 and 3

Constable, Edwin C.,Daniels, Marcus A. M.,Drew, Michael G. B.,Tocher, Derek A.,Walker, Juliet V.,Wood, Philip D.

, p. 1947 - 1958 (1993)

A series of substituted 2,2':6',2'':6'',2''':6''',2''''-quinquepyridine ligands has been prepared and its co-ordination chemistry investigated.The presence of substituents on the ligand does not alter the co-ordination chemistry, and double-helical comple

Hairpin helicates: A missing link between double-helicates and trefoil knots

Constable, Edwin C.,Figgemeier, Egbert,Hougen, Inger Annette,Housecraft, Catherine E.,Neuburger, Markus,Schaffner, Silvia,Whall, Louise A.

, p. 1168 - 1175 (2007/10/03)

We have prepared a novel ligand in which two qpy metal-binding domains are linked by a polyoxyethylene spacer. The new ligand reacts with copper(II) salts to form dinuclear double helicates with a hairpin structure. The hairpin complex and a model complex