好大好硬快点受不了了

  • <label id="ggamg"></label>
    <option id="ggamg"><nav id="ggamg"></nav></option>
  • <center id="ggamg"><strong id="ggamg"></strong></center>
  • <code id="ggamg"></code>
  • <nav id="ggamg"></nav>
  • sell 4,4'-Dihydroxybenzophenone

    4,4'-dihydroxybenzophenone is used as an intermediate for medicines, dyes, pesticides, ultraviolet absorbers, etc.

    4,4'-Dihydroxybenzophenone

    Synonyms:DHBP

    Molecular Formula:C13H10O3

    Molecular Weight:214.22

    CAS Registry Number:611-99-4

    EINECS:210-288-1

    Melting point:217-222 oC

    Water solubility:insoluble

    Purity:99%

    4,4'-dihydroxybenzophenone is used as an intermediate for medicines, dyes, pesticides, ultraviolet absorbers, etc.


    好大好硬快点受不了了
  • <label id="ggamg"></label>
    <option id="ggamg"><nav id="ggamg"></nav></option>
  • <center id="ggamg"><strong id="ggamg"></strong></center>
  • <code id="ggamg"></code>
  • <nav id="ggamg"></nav>