Butane-1,2,3,4 tetracarboxylic dianhydride, Einecs 224-877-6, Butan-1,2,3,4-tetracarbonsaeure-1,2,3,4-dianhydrid, 1,2,3,4-Butanetetracarboxylic 1,2:3,4-dianhydride, butane-1,2,3,4-tetracarboxylic acid-1,2,3,4-dianhydride, 1,2,3,4-BUTANETETRACARBOXYLIC DIANHYDRIDE, Butan-1,2,3,4-tetracarbonsaeure-dianhydrid