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177536-69-5

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177536-69-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 177536-69-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,5,3 and 6 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 177536-69:
(8*1)+(7*7)+(6*7)+(5*5)+(4*3)+(3*6)+(2*6)+(1*9)=175
175 % 10 = 5
So 177536-69-5 is a valid CAS Registry Number.

177536-69-5Relevant articles and documents

Synthesis and Solvatochromism of Some Azo Dyes with Ferrocene as Electron Donor Group for Optical Data Recording

Kersten, Helmut,Boldt, Peter

, p. 129 - 139 (2007/10/02)

We synthesized the arylazo compounds 3a-c, 5a,b, 5d, 5f, 6b, 6d, 6f, 7-9 containing ferrocene as electron donor group and different electron acceptors or donors in order to tune the absorption wavelength. Compounds 5f, 6f, 8, 9 were incorporated as side chains in liquid crystalline polymers. As holographic experiments showed these materials are not superior to polymers containing arylazochromophores without the ferrocene moiety like compounds 10, 11. In addition, the solvatochromism of the ferrocene azo compounds has been measured as a first test of their first order NLO activity. Only compound 9 showed remarkable values.

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