A dark, pyrrole-type aromachemical with a roasted, faintly animalic character reminiscent of coffee grounds and warm nuts, edging into a smoky, earthy undertone. Used in trace amounts it lends depth and a slightly funky, savoury warmth rather than a clean sweetness.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 618.
Colorless mobile liquid.
Very slightly soluble in water, soluble in alcohol and oils.
Powerful and rather pungent, but sweet, somewhat floral odor, rather choking at high concentration, warm-exotic, floral at proper dilution.
The use of this material has been suggested since many pyridine derivatives had enjoyed success as trace ingredients in certain floral fragrance types (Jasmin, Tuberose, Gardenia, etc.).
1) from Pyrrole by Grignard type alkylation. 2) by reduction of chlorophyll derivatives with hydriodic acid, followed by separation of the homologues and isomers formed.