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257906-20-0

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257906-20-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 257906-20-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,7,9,0 and 6 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 257906-20:
(8*2)+(7*5)+(6*7)+(5*9)+(4*0)+(3*6)+(2*2)+(1*0)=160
160 % 10 = 0
So 257906-20-0 is a valid CAS Registry Number.

257906-20-0Downstream Products

257906-20-0Relevant articles and documents

Di-μ-bromo-bis[bromo(η6-para-cymene)-ruthenium(II)] benzene solvate and di-μ-iodo-bis[(η6-para-cymene)iodo-ruthenium(II)] toluene solvate

Neels, Antonia,Stoeckli-Evans, Helen,Plasseraud, Laurent,Garcia Fidalgo, Eva,Suess-Fink, Georg

, p. 2030 - 2032 (1999)

The homologous title molecules, [Ru2Br4(C10H14) 2]·-C6H6, (1), and [Ru2I4(C10H14) 2]·C7H8, (2), consist of arene-ruthenium moieties [Ru-to-ring distances of 1.655 (2) A in (1) and 1.673 (3) A in (2)] with a terminal halogen ligand [Ru - Br 2.548 (1) A in (1) and Ru - I 2.726 (1) A in (2)], held together by two symmetrical halogen bridges [Ru - Br 2.575 (1) A in (1) and Ru - I 2.736 (1) A in (2)]. The arene rings are planar and parallel to each other, and the terminal halogen ligands are coordinated to ruthenium trans with respect to each other. Both molecules possess Ci symmetry.

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