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1254961-52-8

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1254961-52-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1254961-52-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,4,9,6 and 1 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1254961-52:
(9*1)+(8*2)+(7*5)+(6*4)+(5*9)+(4*6)+(3*1)+(2*5)+(1*2)=168
168 % 10 = 8
So 1254961-52-8 is a valid CAS Registry Number.

1254961-52-8Relevant articles and documents

Reversible formation and destruction of micelles of amphiphilic compounds in aqueous media. competition with pseudorotaxane formation

Suzaki, Yuji,Taira, Toshiaki,Osakada, Kohtaro

experimental part, p. 378 - 384 (2010/07/09)

N-Alkyl-4,4′-bipyridiniums [4,4′-bpy-N-(CH2) nOAr]+(Cl-) (n = 6 and 10, Ar = C 6H3-3,5-t-Bu2, C6H 3-3,5-(OMe)2, and C6H2-2,4,6-Me 3), having the cationic bipyridinium group and a long hydrophobic alkyl chain, were prepared from the reaction of 4,4′-bipyridine with the corresponding alkyl chlorides. The amphiphilic compounds in water form micelles which encapsulate added pyrene in the hydrophobic core. Addition of α-cyclodextrin to the micellar solution converts a part of the aggregated amphiphilic molecules to their pseudorotaxane with α-cyclodextrin. Formation of the pseudorotaxanes is favored at lower temperature, as is observed by temperature dependent change of the absorption spectra.

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