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190968-43-5

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190968-43-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 190968-43-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,0,9,6 and 8 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 190968-43:
(8*1)+(7*9)+(6*0)+(5*9)+(4*6)+(3*8)+(2*4)+(1*3)=175
175 % 10 = 5
So 190968-43-5 is a valid CAS Registry Number.

190968-43-5Downstream Products

190968-43-5Relevant articles and documents

Synthesis and reactivity of P-ferrocenylalkylidenephosphanes and related iminophosphanes and diphosphenes

Pietschnig, Rudolf,Niecke, Edgar,Nieger,Airola, Karri

, p. 127 - 133 (2007/10/03)

P-Ferrocenyl-substituted alkylidenephosphanes have been prepared and characterized spectroscopically. Their ready conversion to the corresponding acylphosphanes and 1,2-diacyldiphosphanes, as well as a new type of phosphirene synthesis are presented. The X-ray structure of the tetraferrocenyl-substituted diacyldiphosphane has been investigated. Furthermore, P-ferrocenyl iminophosphanes and their complexation behaviour are described. Diferrocenyldiphosphene, which is known to be unstable, has been stabilized by complexation; this has been confirmed by NMR-spectroscopy and X-ray structure analysis.

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