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173929-80-1

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173929-80-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 173929-80-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,9,2 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 173929-80:
(8*1)+(7*7)+(6*3)+(5*9)+(4*2)+(3*9)+(2*8)+(1*0)=171
171 % 10 = 1
So 173929-80-1 is a valid CAS Registry Number.

173929-80-1Relevant articles and documents

Chromogenic 1,10-phenanthroline for determination of lithium ion

Sugihara, Hideki,Kajiwara, Jun-Ichi,Akabori, Sadatoshi,Hiratani, Kazuhisa

, p. 15 - 16 (2007/10/03)

A new chromogenic 1,10-phenanthroline bearing picrylamino residue displays a striking lithium ion-selective shift in maximum absorbance in the presence of base upon addition of lithium ions; upon lithium complexation the color of solution changes from pale yellow to brownish red, the color density being dependent on lithium ion concentration.

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