發送短信 : Crystal structure of (1α,8α,9β,12β)-1,8-diphenyl-13-oxatetracyclo-[6.4.1.0 2,7.09,12]trideca-2,4,6,10-tetraene, C24H 18O

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