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4',5'-dibromo-2'-hydroxychalcone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

40590-89-4

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40590-89-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40590-89-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,5,9 and 0 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 40590-89:
(7*4)+(6*0)+(5*5)+(4*9)+(3*0)+(2*8)+(1*9)=114
114 % 10 = 4
So 40590-89-4 is a valid CAS Registry Number.

40590-89-4Downstream Products

40590-89-4Relevant academic research and scientific papers

Synthesis of 6,7-Dibromoflavone and Its Regioselective Diversification via Suzuki-Miyaura Reactions

Jordán, Sándor,Pajtás, Dávid,Patonay, Tamás,Langer, Peter,Kónya, Krisztina

, p. 1983 - 1992 (2017/04/26)

The first synthesis pathway to 6,7-dibromoflavone and its transformations to 7-aryl-6-bromo- and 6,7-diarylflavones by Suzuki-Miyaura reactions are presented. Due to the different electronic effects of bromo substituents, the first attack proceeded with good site selectivity at position 7.

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