久热中文字幕无码视频,精品国产AⅤ一区二区三区桃,国产 日韩 在线,国产香线蕉在线手机视频

<video id="bgnrd"></video>
    • <u id="bgnrd"></u>

      <i id="bgnrd"></i>
          <font id="bgnrd"></font>

          Welcome to visit Changzhou Chengbang Chemical Co., Ltd. official website!

          Collection ｜Homepage ｜中文版

          More>>
          N,N-Dimethylformamide
          Product name: N,N-Dimethylformamide
          CAS NO: 68-12-2;1968-12-2
          Molecular weight: 73.09 
          EC NO: 200-679-5
          Molecular formula: C3H7NO
          InChI: InChI=1/C3H7NO/c1-4(2)3-5/h3H,1-2H3
          Structural formula:
            Order                   Back