4,4'-Bis(3-aminophenoxy)biphenyl
https://www.boropharm.com/shop/fm-3b-b6326-44-bis-3-aminophenoxy-biphenyl-83877
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4,4'-Bis(3-aminophenoxy)biphenyl 5g : Aromatic diamine for epoxy curing, polyimides, resins, and high-performance polymers.
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