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90826-86-1

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90826-86-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90826-86-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,8,2 and 6 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 90826-86:
(7*9)+(6*0)+(5*8)+(4*2)+(3*6)+(2*8)+(1*6)=151
151 % 10 = 1
So 90826-86-1 is a valid CAS Registry Number.

90826-86-1Relevant articles and documents

Phosphinocyclopentadienide via Cyclopentadienylphosphide

Schmidpeter, Alfred,Zirzow, Karl-Heinz

, p. 977 - 983 (2007/10/02)

Lithiumorganyls RLi (R = Me, Bu, Ph) add to (PhP)5 in successive degradation and disproportionation equilibria depending on the ratio of the reactants.At -70 deg C (R = Me) disproportionation is blocked and (PhP)4R(-) and (PhP)3R(-) can be detected.With excess RLi monophosphides PhPR(-) are formed.CpNa with the help of a crown ether degrades (PhP)5 or substitutes cyanide from PhPCN(-) to give an equilibrium mixture of (PhP)nCp(-) anions, which stabilize by proton shifts: In case of n = 1 and 2 a shift from the Cp unit to the terminal phosphorus results in the formation of the phenylphosphino- and diphenyldiphosphino-cyclopentadienide anion, in case of n = 3 two proton shifts within the Cp unit result in a cyclopenteno-1,2,3-triphospholene allylic anion. - Keywords: Cyclophosphane, Cyclopentadienide, Nucleophilic Degradation, 31P NMR Spectra

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