日韩欧美国产中文字幕,久久999免费视频,2020国产精品级品色在线,亚洲最大的aⅴ久久网站

  • <b id="e0gxl"><meter id="e0gxl"></meter></b>
      <code id="e0gxl"></code>

          <blockquote id="e0gxl"></blockquote>

            <ul id="e0gxl"></ul>

          Weinan Huifeng New Material Technology Co., Ltd.

          1-Hydroxybenzotriazole

          1-Hydroxybenzotriazole

          Chemical name: 1-Hydroxybenzotrizole
          CAS NO.: 2592-95-2
          Molecular formula: C6H5N3O
          Molecular weight: 135.13
          Structural formula:
          Properties: almost white crystal, purity 99%

          Packaging: 25㎏ fiber can lined with double layer plastic bag

          To use: polypeptide condensating agent


          【Return】