Cas 189067-80-9,C57H63N3O14S5

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Check Digit Verification of cas no

The CAS Registry Mumber 189067-80-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,0,6 and 7 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 189067-80:
(8*1)+(7*8)+(6*9)+(5*0)+(4*6)+(3*7)+(2*8)+(1*0)=179
179 % 10 = 9
So 189067-80-9 is a valid CAS Registry Number.

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189067-80-9Relevant academic research and scientific papers

Synthesis of two calix[4]arenes in 1,3-alternate conformation containing hard and soft ion binding sites

Aeungmaitrepirom, Wanlapa,Asfari, Zouhair,Vicens, Jacques

, p. 1907 - 1910 (1997)

It is reported the synthesis of ligands 6 and 8 combining one calix[4]arene unit in the 1,3-alternate conformation and crown ether and aza crown ether elements. Preliminary complexations are given.

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