| Fumaric Acid | Bartek Ingredients Inc. | Fumaric Acid is an organic, non-hygroscopic white crystal. It is made from N-butane that is oxidized into maleic acid which is then isomerized into fumaric acid. It finds application in printing inks. | |
| Phthalic Anhydride | Thirumalai Chemicals Ltd | Phthalic Anhydride are white flakes and an aromatic di-carboxylic acid anhydride commonly used in production of alkyd resins for paints, inks and coatings, including lacquers, pigments and varnishes. |
