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1325297-13-9

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1325297-13-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1325297-13-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,2,5,2,9 and 7 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1325297-13:
(9*1)+(8*3)+(7*2)+(6*5)+(5*2)+(4*9)+(3*7)+(2*1)+(1*3)=149
149 % 10 = 9
So 1325297-13-9 is a valid CAS Registry Number.

1325297-13-9Relevant articles and documents

Five-fold-symmetric macrocyclic aromatic pentamers: High-affinity cation recognition, ion-pair-induced columnar stacking, and nanofibrillation

Ren, Changliang,Maurizot, Victor,Zhao, Huaiqing,Shen, Jie,Zhou, Feng,Ong, Wei Qiang,Du, Zhiyun,Zhang, Kun,Su, Haibin,Zeng, Huaqiang

, p. 13930 - 13933 (2011/10/30)

Described in this study is a conceptually new class of five-fold-symmetric cavity-containing planar pentameric macrocycles with their interior decorated by five convergently aligned, properly spaced carbonyl oxygen atoms. These cation-binding oxygens enclose a hydrophilic lumen of 2.85 A in radius and thus display high-affinity binding toward alkali metal cations, and possibly many other cations, too. Arising from their high-affinity recognition of metal ions, these planar macrocycles form cation- or ion-pair-induced one-dimensional columnar aggregates, and subsequently fascinating fibrillation results.

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