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165269-23-8

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165269-23-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 165269-23-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,5,2,6 and 9 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 165269-23:
(8*1)+(7*6)+(6*5)+(5*2)+(4*6)+(3*9)+(2*2)+(1*3)=148
148 % 10 = 8
So 165269-23-8 is a valid CAS Registry Number.

165269-23-8Relevant articles and documents

Syntheses, Structures, and Equilibria of o-, m-, p-Tolyl- and Phenylantimony Rings

Breunig, Hans Joachim,Ebert, Klaus Heinz,Guelec, Sabahittin,Probst, Joachim

, p. 599 - 604 (2007/10/02)

Exchange reactions of R3Sb (R = o-Tol, m-Tol, p-Tol) with SbCl3 in a 1:2 molar ratio give RSbCl2.Silylstibanes RSb(SiMe3)2 were obtained by reaction of RSbCl2 and Me3SiCl with Mg in THF.Slow access of air to solutions of RSb(SiMe3)2 afforded orange crystals of the composition (RSb)n.Crystal structures were determined by X-ray crystallography fro R = o-Tol and m-Tol as stacks of (RSb)6 rings in the chair conformation with equatorial substituents.In the crystals of (m-TolSb)6 there are short intermolecular Sb***Sb distances of 420 pm.Solutions of (RSb)n (R = Ph, o-Tol, m-Tol, p-Tol) in C6D6 were analyzed by 1H-NMR spectroscopy.They contain (RSb)5 and (RSb)4 in equilibria.Raman spectra of (PhSb)6 or (p-TolSb)n show signals for Sbn at = 151 or 153 cm-1. 13C-CP-MAS-NMR data of (p-TolSb)n are reported. - Key Words: Cyclopentastibanes/ Cyclohexastibanes/ Antimony compounds/ Phenylantimony rings

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