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7,8,9-triphenyl-8H-cyclopentacenaphthylen-8-ol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

56850-20-5

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56850-20-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 56850-20-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,8,5 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 56850-20:
(7*5)+(6*6)+(5*8)+(4*5)+(3*0)+(2*2)+(1*0)=135
135 % 10 = 5
So 56850-20-5 is a valid CAS Registry Number.

56850-20-5Relevant academic research and scientific papers

Reaction of 1,8-Bis(phenylethynyl)naphthalene with Phenylchlorocarbene: Formation of an Intermolecular Cyclization Product from Carbene Monoadduct and of 1,8-Naphthylenebis(diphenylcyclopropenylium) Dication from the Bisadduct

Komatsu, Koichi,Arai, Mikiro,Hattori, Yoshiyuki,Fukuyama, Keiichi,Katsube, Yukiteru,Okamoto, Kunio

, p. 2183 - 2192 (2007/10/02)

The reactions of 1,8-bis(phenylethynyl)naphthalene (4) with phenylchloro- and dichlorocarbenes and chemistry of the obtained products have been studied.The reaction of 4 with 1 equiv of phenylchlorocarbene exclusively affords spirocyclopropene 8, whose st

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