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820212-06-4

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820212-06-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 820212-06-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,2,0,2,1 and 2 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 820212-06:
(8*8)+(7*2)+(6*0)+(5*2)+(4*1)+(3*2)+(2*0)+(1*6)=104
104 % 10 = 4
So 820212-06-4 is a valid CAS Registry Number.

820212-06-4Relevant articles and documents

A new class of organic dyes based on acenaphthopyrazine for dye-sensitized solar cells

Kong, Zhixia,Zhou, Huizhi,Cui, Jingnan,Ma, Tingli,Yang, Xichuan,Sun, Licheng

experimental part, p. 152 - 157 (2010/11/05)

A new class of organic dyes based on acenaphthopyrazine derivatives, containing pyrazine group as the electron acceptor and o-dicarboxyl acids as the anchoring groups were designed and synthesized for application in dye-sensitized solar cells (DSCs). These dyes have short synthesis routes and are easily adsorbed on the surface of TiO2. Under illumination of simulated AM1.5 solar light (100 mW cm-2), a total solar energy conversion efficiency (η) of 4.04% was obtained for the 3-(diphenylamino) acenaphtho[1,2-b] pyrazine-8,9-dicarboxylic acid (AP-1) in the preliminary tests, in comparison with the conventional N719 dye (η = 7.05%) under the same conditions.

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