A rich, dark green coniferous scent — dense pine-needle and fir sap with a resinous, slightly balsamic sweetness. Deeper and stickier than fir needle essential oil, with a jammy evergreen character and camphoraceous lift. Dries down to a warm, resinous woody note.AI · claude-opus-4-7
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Perfume and Flavor Materials of Natural Origin, page 163.
The concréte is a very dark green paste, often grainy, and after standing, it displays white, needle-shaped crystals. The absolute from American suppliers is a dark green, semi-liquid or syrupy mass. The absolute from French suppliers is usually a syrupy, amber-brown, clear liquid.
The concréte is soluble in most perfume oils.
It has an intensely sweet odor, reminiscent of the odor of strawberry jam and caramelized sugar. The absolute has a sweet-coumarinic, somewhat fruity and intensely balsamic odor; briefly, it is very true to nature.
The concréte can be used as such in soap perfumes. The absolute should be used with utmost care, particularly in perfumes other than the pine types. Additions far below one percent in the perfume oil are often sufficient to introduce the wanted naturalness to a pine fragrance.
The materials are extracted with benzene, ethyl ether, acetone or petroleum ether. Fir needle concréte is further treated with alcohol to produce an Absolute of Fir Needles.