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1608155-12-9

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1608155-12-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1608155-12-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,8,1,5 and 5 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1608155-12:
(9*1)+(8*6)+(7*0)+(6*8)+(5*1)+(4*5)+(3*5)+(2*1)+(1*2)=149
149 % 10 = 9
So 1608155-12-9 is a valid CAS Registry Number.

1608155-12-9Downstream Products

1608155-12-9Relevant articles and documents

Synthesis of fluorescent fluorene-isoindole-containing mono- and oligomers

Lázár, László,Nagy, Miklós,Rácz, Dávid,Zsuga, Miklós,Kéki, Sándor

, p. 3691 - 3699 (2014)

Novel fluorene-isoindole-containing light-emitting mono- and oligomers were prepared. The synthesis of the monomers N-(4-bromo-phenyl)-2-(7-bromo-9,9- diethylfluoren-2-yl)-isoindole-1-carboxamide, N-(7-bromo-9,9-dibutylfluoren-2- yl)-2-(7-bromo-9,9-dibutylfluoren-2-yl)-isoindole-1-carboxamide, and N-[7-bromo-9,9-bis(2-ethylhexyl)-fluoren-2-yl]-2-[7-bromo-9,9-bis(2-ethylhexyl) -fluoren-2-yl]-isoindole -1-carboxamide was carried out by a three-component reaction of ortho-phthalaldehyde with the corresponding amine and isocyanide partners. The Ni(0) mediated polymerization reactions of the obtained monomers gave the corresponding mixture of oligomers from two up to twelve repeat units. The optical properties were also studied and it was found that the phenylene-containing oligomer emitted green light in dichloromethane solution, while both difluorene-containing oligomers, under the same conditions, proved to be blue light-emitters with good quantum efficiency.

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