Cas 196311-55-4,9,14,23,28-tetraphenyldiphenanthro[9,10-b:9',10'-n]tetraphenylene

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Check Digit Verification of cas no

The CAS Registry Mumber 196311-55-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,6,3,1 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 196311-55:
(8*1)+(7*9)+(6*6)+(5*3)+(4*1)+(3*1)+(2*5)+(1*5)=144
144 % 10 = 4
So 196311-55-4 is a valid CAS Registry Number.

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196311-55-4Relevant academic research and scientific papers

Reduction of π-Expanded Cyclooctatetraene with Lithium: Stabilization of the Tetra-Anion through Internal Li+ Coordination

Zhou, Zheng,Zhu, Yikun,Wei, Zheng,Bergner, John,Nei?, Christian,Doloczki, Susanne,G?rling, Andreas,Kivala, Milan,Petrukhina, Marina A.

, p. 3510 - 3514 (2021)

The chemical reduction of a π-expanded polycyclic framework comprising a cyclooctatetraene moiety, octaphenyltetrabenzocyclooctatetraene, with lithium metal readily affords the corresponding tetra-anion instead of the expected aromatic dianion. As reveale

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