أرسل هذا في رسالة قصيرة: Syntheses and Antimicrobial Activities of the Naphthalenyl-ethenylpyridinium Benzenesulfonate Derivatives

  _____     _____               ______    ____    
 / ____||  |  ___||     ___    /_   _//  |  _ \\  
/ //---`'  | ||__      /   ||   -| ||-   | |_| || 
\ \\___    | ||__     | [] ||   _| ||_   | .  //  
 \_____||  |_____||    \__ ||  /_____//  |_|\_\\  
  `----`   `-----`      -|_||  `-----`   `-` --`  
                         `-`