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3-(2-ethylphenyl)quinazoline-2,4(1H,3H)-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21089-72-5

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21089-72-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21089-72-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,0,8 and 9 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 21089-72:
(7*2)+(6*1)+(5*0)+(4*8)+(3*9)+(2*7)+(1*2)=95
95 % 10 = 5
So 21089-72-5 is a valid CAS Registry Number.

21089-72-5Downstream Products

21089-72-5Relevant academic research and scientific papers

Oxidative Rearrangement of Isatins with Arylamines Using H2O2 as Oxidant: A Facile Synthesis of Quinazoline-2,4-diones and Evaluation of Their Antibacterial Activity

Shi, Guanghao,He, Xinwei,Shang, Yongjia,Yang, Cheng,Xiang, Liwei

, p. 1835 - 1843 (2017)

A green and highly efficient synthetic method for the synthesis of quinazoline-2,4-diones with hydrogen peroxide as the terminal oxidant has been developed. The reaction features the mild reaction conditions, broad substrate scope, metal-free catalysts, and sole byproduct water. A plausible mechanism for this process was proposed. Moreover, an antibacterial activity study was performed to evaluate the antimicrobial activities towards two Gram-negative bacterial strains (Escherichia coli, and Klebsiella pneumonia) and two Gram-positive bacterial strains (Staphylococcus epidermidis, and Staphylococcus aureus) using the Broth microdilution method.

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