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854616-70-9

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854616-70-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 854616-70-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,4,6,1 and 6 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 854616-70:
(8*8)+(7*5)+(6*4)+(5*6)+(4*1)+(3*6)+(2*7)+(1*0)=189
189 % 10 = 9
So 854616-70-9 is a valid CAS Registry Number.

854616-70-9Relevant articles and documents

Highly sodium-selective fluoroionophore based on conformational restriction of oligoethyleneglycol-bridged biaryl boron-dipyrromethene

Yamada, Koji,Nomura, Yuki,Citterio, Daniel,Iwasawa, Naoko,Suzuki, Koji

, p. 6956 - 6957 (2007/10/03)

A non-PET and non-PCT fluoroionophore has been designed and synthesized based on the combination of a biaryl boron-dipyrromethene fluorophore with an oligoethyleneglycol bridge. A specific red-shift response of absorption for NaClO4 in acetonitrile was demonstrated based on conformational restriction triggered by cation recognition at the bridge. The concentration of Na+ can be determined accurately using fluorescence due to a high extinction coefficient (ε = 50000), a high fluorescence quantum yield (Φf = 0.68), and the sharpness of absorption and emission peaks of the boron-dipyrromethene derivative. Copyright

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