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871240-20-9

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871240-20-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 871240-20-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,1,2,4 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 871240-20:
(8*8)+(7*7)+(6*1)+(5*2)+(4*4)+(3*0)+(2*2)+(1*0)=149
149 % 10 = 9
So 871240-20-9 is a valid CAS Registry Number.

871240-20-9Downstream Products

871240-20-9Relevant articles and documents

Synthesis and evaluation of new ditopic cyclophane receptors for benzoic acid

Stetson, Christopher M.,Nishikawa, Shiro,Purkiss, David W.,Dalley,Bartsch, Richard A.

, p. 1107 - 1115 (2007/10/03)

As potential receptors for a benzoic acid guest, new ditopic cyclophane host molecules, each with a π electron-rich portion and a pyridine ring-containing portion, are synthesized. Complexation of benzoic acid guest by the potential molecular receptors is probed by infrared spectroscopy, proton magnetic resonance titration experiments and solid-state structure determination. Copyright

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