Quinine bisulfate carries an intensely bitter, dry medicinal character with a faintly herbal, tonic-like nuance. It's more of a taste/tonality modifier than a classic aroma material — used in trace amounts to bring a bitter, sparkling 'tonic water' bite to citrus and gin-style accords.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 1224.
Crystals or crystalline powder. White when fresh, but may acquire a brownish tint upon exposure to air.
10% soluble in water, 4% in alcohol, 6% in glycerin. The saturated aqueous solution has acid reaction (pH = 3.5).
Odorless, but has intensely bitter taste.
This salt is used as a bitter additive to beverages, mostly carbonated beverages, and usually accompanied by a food acid.