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207742-45-8

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207742-45-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 207742-45-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,7,7,4 and 2 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 207742-45:
(8*2)+(7*0)+(6*7)+(5*7)+(4*4)+(3*2)+(2*4)+(1*5)=128
128 % 10 = 8
So 207742-45-8 is a valid CAS Registry Number.

207742-45-8Relevant articles and documents

Synthesis and properties of new fluorene-containing copolymer via the catalytic dehydrocoupling reaction of 9,9-dipropargyl fluorene and 4,4′-diphenyl-2,6-dibromo-dithieno-[3,2-b:2′,3′-d]silole

Lee, Gab Yong,Gal, Yeong-Soon,Lee, Sang-Gu

, p. 167 - 171 (2016)

New fluorene-containing copolymer was prepared via the catalytic dehydrocoupling reaction of 9,9-dipropargylfluorene and 4,4′-diphenyl-2,6-dibromo-dithieno-[3,2-b:2′,3′-d]silole in 44% yield. The resulting polymer was completely soluble in common organic

NONLINEAR OPTICAL MATERIAL COMPOSITION AND METHOD OF MANUFACTURE

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Page/Page column 26-27, (2008/12/08)

Embodiments of the present disclosure provide non-linear optical compounds and compositions comprising a silole-derivative. In an embodiment, the silole derivative comprises a chromophore including a structure represented by Formula (A): wherein each Of R

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