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54559-57-8

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54559-57-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54559-57-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,5,5 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 54559-57:
(7*5)+(6*4)+(5*5)+(4*5)+(3*9)+(2*5)+(1*7)=148
148 % 10 = 8
So 54559-57-8 is a valid CAS Registry Number.

54559-57-8Relevant articles and documents

Spectroscopic evaluation of a novel multi-element sensitive fluorescent probe derived from 2-(2′-phenylbenzamide)benzimidazole: Selective discrimination of Al3?+ and Cd2?+ from their congeners

Dhaka, Gargi,Kaur, Navneet,Singh, Jasvinder

, p. 57 - 61 (2016)

A novel fluorescent chemosensor 2 exhibiting excited-state intramolecular proton transfer (ESIPT) process has been synthesized by condensation approach, among which 2 could be used as a multielement sensitive fluorescent probe for both Al3?+ and Cd2?+. The emission wavelength of 2 underwent blue shift of 78?nm upon binding with these ions. The cation-induced inhibition of ESIPT phenomenon was responsible for these fluorescence changes. Moreover, the absorption spectra of 2 showed changes with F? and AcO? ions also. TD-DFT studies well displayed the blue shift in the emission wavelength of 2 upon binding with Al3?+ ions.

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