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1427716-58-2

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1427716-58-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1427716-58-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,7,7,1 and 6 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1427716-58:
(9*1)+(8*4)+(7*2)+(6*7)+(5*7)+(4*1)+(3*6)+(2*5)+(1*8)=172
172 % 10 = 2
So 1427716-58-2 is a valid CAS Registry Number.

1427716-58-2Downstream Products

1427716-58-2Relevant articles and documents

Donor-substituted distyrylpyrazines: Influence of steric congestion on UV-Vis absorption and fluorescence

Wink, Christoph,Detert, Heiner

, p. 144 - 150 (2013/03/13)

Di(p-aminostyryl)pyrazines with voluminous substituents on the nitrogen and in the adjacent positions were prepared via twofold aldol condensation. Absorption and emission spectra are influenced by increasing steric hindrance because the orbital overlap between nitrogen and π-system is modulated by voluminous groups. Strong solvatochromism of the fluorescence and huge Stokes shifts result from amplified donor-acceptor interaction in the excited state. Protonation occurs at the terminal amino groups first, followed by protonation of the central pyrazine. With increasing strength of acid, absorption and emission spectra are first shifted to the blue followed by a redshift. Copyright

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