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1417521-53-9

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1417521-53-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1417521-53-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,1,7,5,2 and 1 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1417521-53:
(9*1)+(8*4)+(7*1)+(6*7)+(5*5)+(4*2)+(3*1)+(2*5)+(1*3)=139
139 % 10 = 9
So 1417521-53-9 is a valid CAS Registry Number.

1417521-53-9Downstream Products

1417521-53-9Relevant articles and documents

Synthesis of sterically hindered antipyrines for intramolecular charge transfer facilitated sensing

Bian, Linyi,Sun, Gang,Sun, Yuxi,Tang, Weihua

, p. 1112 - 1118 (2012)

A new series of sterically hindered antipyrine derivatives have been synthesized by Schiff base condensation for potential fluorescence sensing applications. Their optical, thermal, and electrochemical properties were fully characterized. Broad absorption spectra were observed as a result of the strong intramolecular charge transfer between antipyrine and sterically hindered conjugated moiety. Reversible one electron oxidation couple was observed for most compounds, with carbazole, phenothiazine, and bithiophene functionalized derivatives exhibiting extra reversible one one-electron oxidation process at higher positive potentials. Cabazole functionalized antipyrine derivative APCZ presents good fluorescence sensing for Co2+ and Cu2+, with 3.41-fold enhancement in fluorescence intensity and 2-fold enhancement in fluorescence quantum yield observed. Copyright

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