Cas 157929-20-9,C30H16BrNO2

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Check Digit Verification of cas no

The CAS Registry Mumber 157929-20-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,9,2 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 157929-20:
(8*1)+(7*5)+(6*7)+(5*9)+(4*2)+(3*9)+(2*2)+(1*0)=169
169 % 10 = 9
So 157929-20-9 is a valid CAS Registry Number.

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157929-20-9Relevant academic research and scientific papers

Synthesis and computational studies of hyperpolarizable zig-zag chromophores

Wong, Man Shing,Nicoud, Jean-Francois

, p. 6113 - 6116 (2007/10/02)

The highly hyperpolarizable zig-zag chromophores were synthesized using palladium coupling reactions and their nonlinear optical properties were studied by AM1 semi-empirical methods showing the possession of large off-diagonal hyperpolarizable, β, tensor components.

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