1. <p id="he14u"><del id="he14u"><xmp id="he14u"></xmp></del></p>

        <pre id="he14u"><del id="he14u"><xmp id="he14u"></xmp></del></pre>
        <p id="he14u"></p>

        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.


        动漫美女扒下内裤的照片十八禁