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1357284-41-3

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1357284-41-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1357284-41-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,5,7,2,8 and 4 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1357284-41:
(9*1)+(8*3)+(7*5)+(6*7)+(5*2)+(4*8)+(3*4)+(2*4)+(1*1)=173
173 % 10 = 3
So 1357284-41-3 is a valid CAS Registry Number.

1357284-41-3Relevant academic research and scientific papers

Synthesis and structure of oxacalix[2]arene[2]triazines of an expanded π-electron-deficient cavity and their interactions with anions

Li, Sen,Fa, Shi-Xin,Wang, Qi-Qiang,Wang, De-Xian,Wang, Mei-Xiang

, p. 1860 - 1867 (2012/04/23)

Novel macrocyclic anion receptors based on the principle of anion-π interactions were reported. By means of both post-macrocyclization modification protocol and the stepwise fragment coupling approach, functionalized oxacalix[2]arene[2]triazines bearing two other electron-deficient (hetero)aromatic rings on the lower rim were efficiently synthesized. The resulting oxacalix[2]arene[2]triazine macrocyclesadopt 1,3-alternate conformation, yielding therefore an expanded electron-deficient cavity or space consisting of two triazine rings and two appending aromatic rings. Spectroscopic titration study showed the selective interaction of the pentafluorophenyl- substituted oxacalix[2]arene[2]triazine with azide and fluoride in solution with the binding constants (K1:1) ranging from 1.33 × 10 3 to 3.52 × 103 M-1.

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