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92543-42-5

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92543-42-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 92543-42-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,2,5,4 and 3 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 92543-42:
(7*9)+(6*2)+(5*5)+(4*4)+(3*3)+(2*4)+(1*2)=135
135 % 10 = 5
So 92543-42-5 is a valid CAS Registry Number.

92543-42-5Downstream Products

92543-42-5Relevant articles and documents

Enantiomeric Separations of Ruthenium (II) Polypyridyl Complexes Using HPLC With Cyclofructan Chiral Stationary Phases

Shu, Yang,Breitbach, Zachary S.,Dissanayake, Milan K.,Perera, Sirantha,Aslan, Joseph M.,Alatrash, Nagham,MacDonnell, Frederick M.,Armstrong, Daniel W.

, p. 64 - 70 (2015/04/14)

The enantiomeric separation of 21 ruthenium (II) polypyridyl complexes was achieved with a novel class of cyclofructan-based chiral stationary phases (CSPs) in the polar organic mode. Aromatic derivatives on the chiral selectors proved to be essential for enantioselectivity. The R-napthylethyl carbamate functionalized cyclofructan 6 (LARIHC CF6-RN) column proved to be the most effective overall, while the dimethylphenyl carbamate cyclofructan 7 (LARIHC CF7-DMP) showed complementary selectivity. A combination of acid and base additives was necessary for optimal separations. The retention factor vs. acetonitrile/methanol ratio plot showed a U-shaped retention curve, indicating that different interactions take place at different polar organic solvent compositions. The separation results indicated that π-π interactions, steric effects, and hydrogen bonding contribute to the enantiomeric separation of ruthenium (II) polypyridyl complexes with cyclofructan chiral stationary phases in the polar organic mode.

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