發送短信

數:

提供者:

CAPTCHA:

   _____   __   __   _    _      ___    __    __  
  / ___//  \ \\/ // | |  | ||   / _ \\  \ \\ / // 
  \___ \\   \ ` //  | |/\| ||  / //\ \\  \ \/ //  
  /    //    | ||   |  /\  || |  ___  ||  \  //   
 /____//     |_||   |_// \_|| |_||  |_||   \//    
`-----`      `-`'   `-`   `-` `-`   `-`     `

Please enter what you see:

發送短信 : Crystal structure of 3-(E)-benzylidene-(1RS,2SR,5RS,6SR)-tricyclo[4.2.2.0 2,5]deca-7-ene-9,9,10,10-tetracarbonitrile, C21H 14N4