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(+/-)-2,2'-bis(diphenylphosphino)-1,1'-(propane-1,3-diyl)ferrocene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

175719-99-0

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175719-99-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 175719-99-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,5,7,1 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 175719-99:
(8*1)+(7*7)+(6*5)+(5*7)+(4*1)+(3*9)+(2*9)+(1*9)=180
180 % 10 = 0
So 175719-99-0 is a valid CAS Registry Number.

175719-99-0Downstream Products

175719-99-0Relevant articles and documents

Isomeric diphosphines of a heteroannularly bridged ferrocene: Preparation, chromatographic separation and structure elucidation

Kutschera, Georg,Kratky, Christoph,Weissensteiner, Walter,Widhalm, Michael

, p. 195 - 208 (1996)

Twofold lithiation of the heteroannularly bridged aminophosphine 5 yielded a mixture of five isomeric aminodiphosphines 7a-7d and 11, which were separated by adsorption chromatography. Their substitution pattern was elucidated by X-ray structure analyses and chemical correlation. Corresponding diphosphines 10a-10d were derived with moderate yields via acetates 8a-8d. A search for stable conformers of 7a-7d and 11 was conducted using empirical force field calculations. Calculated minimum-energy geometries were compared with crystal structures of 7a, 7c and 7d.

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