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2,7-dibromo-9,9-bis(3,4-dimethoxyphenyl)fluorene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1443550-52-4

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1443550-52-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1443550-52-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,3,5,5 and 0 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1443550-52:
(9*1)+(8*4)+(7*4)+(6*3)+(5*5)+(4*5)+(3*0)+(2*5)+(1*2)=144
144 % 10 = 4
So 1443550-52-4 is a valid CAS Registry Number.

1443550-52-4Relevant academic research and scientific papers

Modular access to 9,9-spirobifluorenes by oxidative coupling using molybdenum pentachloride

Trosien, Simon,Schollmeyer, Dieter,Waldvogel, Siegfried R.

supporting information, p. 1160 - 1164 (2013/06/04)

The strong oxidizing agent molybdenum pentachloride was used for an efficient direct C-C bond formation of 9,9-diarylfluorenes to the corresponding 9,9-spirobifluorenes. Thus, a versatile method that is compatible with labile groups, such as iodo moieties

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