Cas 603956-89-4,Triplumbirane, hexakis(2,4,6-triethylphenyl)-

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Check Digit Verification of cas no

The CAS Registry Mumber 603956-89-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,0,3,9,5 and 6 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 603956-89:
(8*6)+(7*0)+(6*3)+(5*9)+(4*5)+(3*6)+(2*8)+(1*9)=174
174 % 10 = 4
So 603956-89-4 is a valid CAS Registry Number.

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603956-89-4Relevant academic research and scientific papers

Hexaarylcyclotriplumbane: A molecule with a homonuclear ring system of lead

Stabenow, Frank,Saak, Wolfgang,Marsmann, Heinrich,Weidenbruch, Manfred

, p. 10172 - 10173 (2003)

The reaction of lead(II) bromide with RMgBr, R = 2,4,6-Et3C6H2, furnishes black crystals ofhexakis(2,4,6-triethylphenyl)cyclotriplumbane (1) as the first molecule with a homonuclear lead ring. 1 adopts a skewed structure with highly stretched Pb-Pb bond lengths of 3.185 A (average), which indicate that the three-membered ring is formed by weak interactions of 3 singlet plumbylene molecules. Copyright

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