国模张文静啪啪私拍150P

  • <u id="omkko"></u>
    <xmp id="omkko"><menu id="omkko"></menu>
  • <label id="omkko"></label><bdo id="omkko"><menu id="omkko"></menu></bdo>
  • <input id="omkko"></input>
    <label id="omkko"></label>

    sell 4,4'-(4,4'-Isopropylidenediphenoxy)bis(phthalic anhydride)

    4,4'-(4,4'-Isopropylidenediphenoxy)bis(phthalic anhydride) be used for the preparation of a polyimide material.

    4,4'-(4,4'-Isopropylidenediphenoxy)bis(phthalic anhydride)

    Synonyms:5,5'-[2,2-Propanediylbis(4,1-phenyleneoxy)]bis(2-benzofuran-1,3-dione); BPADA

    Molecular Formula:C31H20O8

    Molecular Weight:520.49

    CAS Registry Number:38103-06-9

    EINECS:253-781-7

    Melting point:184-187 oC

    Purity:99%

    4,4'-(4,4'-Isopropylidenediphenoxy)bis(phthalic anhydride) be used for the preparation of a polyimide material.


    国模张文静啪啪私拍150P
  • <u id="omkko"></u>
    <xmp id="omkko"><menu id="omkko"></menu>
  • <label id="omkko"></label><bdo id="omkko"><menu id="omkko"></menu></bdo>
  • <input id="omkko"></input>
    <label id="omkko"></label>