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m-Nitro-α,α-difluoracetophenon, also known as 3-nitro-2,2-difluoro-1-phenylethanone, is an organic compound characterized by the presence of a nitro group (-NO2) at the meta position (third carbon) of the phenyl ring, and two fluorine atoms (-F) attached to the alpha carbon (adjacent to the carbonyl group). This chemical features a carbonyl group (C=O) and a phenyl ring, making it a derivative of acetophenone. It is a yellow crystalline solid with a molecular formula of C8H5F2NO3 and a molecular weight of 205.13 g/mol. m-Nitro-α,α-difluoracetophenon is used as an intermediate in the synthesis of various pharmaceuticals and agrochemicals, particularly in the production of fluorinated compounds, due to its unique reactivity and properties.

657-17-0

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657-17-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 657-17-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,5 and 7 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 657-17:
(5*6)+(4*5)+(3*7)+(2*1)+(1*7)=80
80 % 10 = 0
So 657-17-0 is a valid CAS Registry Number.

657-17-0Downstream Products

657-17-0Relevant academic research and scientific papers

A Carbene Strategy for Progressive (Deutero)Hydrodefluorination of Fluoroalkyl Ketones

Bi, Xihe,Sivaguru, Paramasivam,Song, Qingmin,Wang, Zikun,Zanoni, Giuseppe,Zhang, Xiaolong,Zhang, Xinyu

, (2021/12/23)

Hydrodefluorination is one of the most promising chemical strategies to degrade perfluorochemicals into partially fluorinated compounds. However, controlled progressive hydrodefluorination remains a significant challenge, owing to the decrease in the stre

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