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![Trimethylolpropane tris[poly(propylene glycol), amine terminated] ether](https://api.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/structures/186/658/1b1d510a-705a-4bfd-b90a-9dec80d64467/640/1b1d510a-705a-4bfd-b90a-9dec80d64467.png)