好大好硬快点受不了了

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  • sell 3,3',4,4'-biphenyltetracarboxylic dianhydride

    3,3',4,4'-biphenyltetracarboxylic dianhydride be used for the preparation of a polyimide material.

    3,3',4,4'-biphenyltetracarboxylic dianhydride

    Molecular Formula:C16H6O6

    Molecular Weight:294.22

    CAS:2420-87-3

    EINECS:219-342-9

    Melting point:299-305 oC

    Purity:99.9%

    3,3',4,4'-biphenyltetracarboxylic dianhydride be used for the preparation of a polyimide material.


    好大好硬快点受不了了
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