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20259-78-3

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20259-78-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20259-78-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,2,5 and 9 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 20259-78:
(7*2)+(6*0)+(5*2)+(4*5)+(3*9)+(2*7)+(1*8)=93
93 % 10 = 3
So 20259-78-3 is a valid CAS Registry Number.

20259-78-3Downstream Products

20259-78-3Relevant articles and documents

Synthesis of Silatrane-Containing Organic Sensitizers as Precursors for the Silyloxyl Anchoring Group in Dye-Sensitized Solar Cells

Bessi, Matteo,Monini, Marco,Calamante, Massimo,Mordini, Alessandro,Sinicropi, Adalgisa,Basosi, Riccardo,Di Donato, Mariangela,Foggi, Paolo,Iagatti, Alessandro,Zani, Lorenzo,Reginato, Gianna

, p. 3975 - 3984 (2017)

A series of organic D-π-A dyes, endowed with different silicon-based anchoring groups, has been prepared to assess the stability of such anchoring moieties on nanocrystalline TiO 2 in dye-sensitized solar cells. Due to the difficulties encountered in finding a reliable and robust preparation protocol to obtain pure trialkoxysilanes, replacement with a silatrane moiety was evaluated. It was found that the silatrane group could be easily introduced on three different molecular scaffolds by using a simple amide coupling reaction mediated by EDC-Cl. Furthermore, the spectroscopic properties and anchoring mode on nanocrystalline TiO 2 of the silatrane dyes were found to be nearly identical to those of the trialkoxysilane compounds, and both gave a much more stable attachment to the semiconductor compared with their cyanoacrylic acid counterpart, as shown by desorption experiments.

Organosilatrane building blocks

Brennan, Bradley J.,Gust, Devens,Brudvig, Gary W.

, p. 1062 - 1064 (2015/02/19)

Phenylsilatrane analogues containing reactive amino, bromo, boronic ester, and alkynyl functional groups for coupling reactions have been prepared. Pinacol boronic ester and ethynyl analogues were synthesized from 4-bromophenylsilatrane by palladium catal

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