Is 2,5-Furandione, polymer with ethenylbenzene, ammonium salt vegan?

Ammonium Styrene/MA Copolymer is also known as 2,5-Furandione, polymer with ethenylbenzene, ammonium salt.

Ammonium Styrene/MA Copolymer is the ammonium salt of the styrene/maleic anhydride copolymer, a synthetic polymer used as a film-forming agent in cosmetics.

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