Fumaric acid is a crystalline organic acid with a sharp, sour, tart odor reminiscent of unripe fruit. It has minimal aromatic diffusion but contributes a distinctly acidic, puckering character. Rarely used in fine perfumery — more common as a food acidulant.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 578.
White or colorless prismatic, needlelike or leafy crystals.
0.5% soluble in water, 6% soluble in cold alcohol, 10% soluble in boiling hot water, 5% in hot alcohol. Poorly soluble in oils.
Virtually odorless. Clean, slightly tart, acid taste in aqueous solution.
This acid is used in food products as an acidifier with an acid type of taste that blends particularly well with caramellic or sugar-sweetened products, baked products, etc. It is also used along with imitation Apple flavor, Peach and Vanilla.
Produced from (many methods) e.g. 1) by fungal action upon Glucose. 2) by isomerization of Maleic acid. 3) by oxidation of Furfural with Sodium chlorate and catalyst.