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1422283-59-7

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1422283-59-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1422283-59-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,2,2,8 and 3 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1422283-59:
(9*1)+(8*4)+(7*2)+(6*2)+(5*2)+(4*8)+(3*3)+(2*5)+(1*9)=137
137 % 10 = 7
So 1422283-59-7 is a valid CAS Registry Number.

1422283-59-7Relevant articles and documents

BODIPY-based ratiometric fluoroionophores with bidirectional spectral shifts for the selective recognition of heavy metal ions

Hafuka, Akira,Taniyama, Hiroki,Son, Sang-Hyun,Yamada, Koji,Takahashi, Masahiro,Okabe, Satoshi,Satoh, Hisashi

, p. 37 - 44 (2013/02/23)

Two novel asymmetric BODIPY fluoroionophores with dipicolylamine (BDP-DPA, dipicolylamine: bis(pyridylmethyl)) and terpyridine (BDP-TPY) are described. These fluoroionophores display opposite wavelength responses on complexation with heavy metal ions. Furthermore, the fluorescence spectra vary depending on the ionic species. In particular, BDP-DPA shows a high affinity toward Cr3+ and upon complexation, the fluorescence spectrum blue-shifts from 591 to 566 nm. In contrast, BDP-TPY preferentially binds to Zn2+ and the fluorescence spectra red-shifts from 539 to 567 nm. BDP-TPY is the first example of asymmetric BODIPY with a pyridyl receptor at the 3 position showing redshifted fluorescence by complexation with metal ions. The concentration of each metal ion was successfully determined by ratiometric measurement. The wavelength-responses characteristics of these fluoroionophores could be very useful in the development of novel ratiometric fluoroionophores for metal ions.

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