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1427217-99-9

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1427217-99-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1427217-99-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,7,2,1 and 7 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1427217-99:
(9*1)+(8*4)+(7*2)+(6*7)+(5*2)+(4*1)+(3*7)+(2*9)+(1*9)=159
159 % 10 = 9
So 1427217-99-9 is a valid CAS Registry Number.

1427217-99-9Relevant articles and documents

1,2-Disubstituted aryl-based ferrocenyl phosphines

Madalska, Martyna,Loennecke, Peter,Hey-Hawkins, Evamarie

, p. 2019 - 2025 (2013/05/08)

Ferrocenylaryl-or ferrocenylheteroarylphosphines [Fe{1-PPh 2(spacer)-2-NMe2CH2C5H 3}(C5H5)] (spacer = 1,4-phenylene (rac-6), 1,3-phenylene (rac-7), 4,4′-biphenylene (rac-8), 2,5-thienylene (rac-9)) were prepared in a facile two-step sequence starting with Negishi cross-coupling between N,N-dimethylaminomethylferrocene and aryl halide phosphine oxides, Br-spacer-P(O)Ph2, followed by reduction with trichlorosilane. All products were characterized spectroscopically (1H, 13C, and 31P NMR, MS, FTIR), and rac-6, the corresponding phosphine oxide rac-2, and rac-9 were also characterized by X-ray crystallography. Furthermore, the redox properties of rac-2-9 were studied by cyclic voltammetry.

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