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240129-68-4

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240129-68-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 240129-68-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,0,1,2 and 9 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 240129-68:
(8*2)+(7*4)+(6*0)+(5*1)+(4*2)+(3*9)+(2*6)+(1*8)=104
104 % 10 = 4
So 240129-68-4 is a valid CAS Registry Number.

240129-68-4Downstream Products

240129-68-4Relevant articles and documents

Crown-containing butadienyl dyes 1. synthesis, structure, fluorescence, and complex formation of chromogenic aza-15-crown-5 ethers

Gromov,Sergeev,Druzhinin,Rusalov,Uzhinov,Kuz'mina,Churakov,Howard,Alfimov

, p. 525 - 536 (2007/10/03)

Crown-containing butadienyl dyes containing various heterocyclic moieties and azacrown ether fragments were synthesized for the first time. The spatial structures and the absorption and fluorescence spectra of crown-containing butadienyl dyes and their complexes with metal cations were examined. The effects of the nature of the heterocyclic and crown ether fragments on fluorescence and generation of dyes and their complexes with metal cations were revealed based on the spectral data.

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