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173950-19-1

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173950-19-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 173950-19-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,9,5 and 0 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 173950-19:
(8*1)+(7*7)+(6*3)+(5*9)+(4*5)+(3*0)+(2*1)+(1*9)=151
151 % 10 = 1
So 173950-19-1 is a valid CAS Registry Number.

173950-19-1Downstream Products

173950-19-1Relevant articles and documents

New supramolecular host systems. 41 Novel diacetal podands, diazacrowns and cryptands

Frische, Klaus,Greenwald, Moshe,Ashkenasi, Eli,Lemcoff, N. Gabriel,Abramson, Sarah,Golender, Larisa,Fuchs, Benzion

, p. 9193 - 9196 (1995)

New and important key podands bearing the cis-1,3,5,7-tetraoxadecalin (TOD) core are reported, viz., 2,6-di(hydroxymethyl)- (2) and 2,6-di(aminomethyl)-cis-l,3,5,7-TOD (6), which lead to the first diazacrown-TOD compounds (9a) and (9b) and a corresponding cryptand (11) in the series. 9a&b exhibit very good alkali and earth-alkali ion inclusion ability with selectivity for K+ and Ba+2. Molecular dynamics (Insight/Discover/AMBER) on the crowns and cryptand were performed, including reparametrized MM3-GE calculations. A convincing case for the TOD based hosts was thus established.

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