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5-fluoro-4'-cyanoflavone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1257513-91-9

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1257513-91-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1257513-91-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,5,1 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1257513-91:
(9*1)+(8*2)+(7*5)+(6*7)+(5*5)+(4*1)+(3*3)+(2*9)+(1*1)=159
159 % 10 = 9
So 1257513-91-9 is a valid CAS Registry Number.

1257513-91-9Upstream product

1257513-91-9Downstream Products

1257513-91-9Relevant academic research and scientific papers

An effective synthesis of 5,4′-disubstituted flavones via a cesium enolate assisted intramolecular ipso-substitution reaction

Matsugi, Masato,Takeda, Masaki,Takahashi, Ayano,Tazaki, Takahide,Tamura, Hiroto,Shioiri, Takayuki

, p. 1107 - 1110 (2010)

A variety of 5,4′-disubstituted flavones, which are anticipated to be androgen receptor antagonists to treat diseases mediated by the androgen receptor, were synthesized. It was found that an intramolecular ipso-substitution reaction via cesium enolate using 2-fluoro-6- hydroxyacetophenone and various benzoyl chlorides was effective in the preparation of 5-hydroxy-4′-alkylflavones.

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