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867248-84-8

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867248-84-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 867248-84-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,7,2,4 and 8 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 867248-84:
(8*8)+(7*6)+(6*7)+(5*2)+(4*4)+(3*8)+(2*8)+(1*4)=218
218 % 10 = 8
So 867248-84-8 is a valid CAS Registry Number.

867248-84-8Relevant articles and documents

Facile synthesis of novel monodisperse linear 3,9-linked oligocarbazoles

Xu, Tinghua,Lu, Ran,Jin, Ming,Qiu, Xianping,Xue, Pengchong,Bao, Chunyan,Zhao, Yingying

, p. 6883 - 6886 (2005)

Novel monodisperse linear 3,9-linked oligocarbazoles (OCAs) were prepared stepwise using Ullmann coupling reaction in seal-tubes. The resulting OCAs were soluble in common organic solvents. The UV-vis spectra of OCAs exhibited small red shift and their intensities increased linearly with the increase of the carbazole moieties, suggesting that no intramolecular π-interactions appeared at ≤8-mer. All the OCAs gave strong fluorescence and it was found that the conjugated degree of linear OCAs would be saturated when the number of carbazole units reaches four.

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