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253192-28-8

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253192-28-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 253192-28-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,3,1,9 and 2 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 253192-28:
(8*2)+(7*5)+(6*3)+(5*1)+(4*9)+(3*2)+(2*2)+(1*8)=128
128 % 10 = 8
So 253192-28-8 is a valid CAS Registry Number.

253192-28-8Relevant articles and documents

Structure-activity relationships of novel 2-substituted quinazoline antibacterial agents

Kung, Pei-Pei,Casper, Martin D.,Cook, Kimberley L.,Wilson-Lingardo, Laura,Risen, Lisa M.,Vickers, Timothy A.,Ranken, Ray,Blyn, Lawrence B.,Wyatt, Jacqueline R.,Cook, P. Dan,Ecker, David J.

, p. 4705 - 4713 (2007/10/03)

High-throughput screening of in-house compound libraries led to the discovery of a novel antibacterial agent, compound 1 (MIC: 12-25 μM against S. pyogenes). In an effort to improve the activity of this active compound, a series of 2-substituted quinazolines was synthesized and evaluated in several antibacterial assays. One such compound (22) displayed improved broad- spectrum antibacterial activity against a variety of bacterial strains. This molecule also inhibited transcription/translation of bacterial RNA, suggesting a mechanism for its antibiotic effects. Structure-activity relationship studies of 22 led to the synthesis of another 24 compounds. Although some of these molecules were found to be active in bacterial growth assays, none were as potent as 22. Compound 22 was tested for its ability to cure a systemic K. pneumonia infection in the mouse and displayed moderate effects compared with a control antibiotic, gentamycin.

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