The note, when theoretically considered for its olfactory essence, presents a deeply unsettling yet complex profile. It is often described as a thick, viscous aroma, almost tangible in its weight, with an initial sickly-sweetness that quickly turns putrid and metallic, reminiscent of old blood and decay. There's an undeniable sulfurous undertone, often likened to rotten eggs or stagnant water, mingled with a faint, sour milkiness or cheesy aspect. Its intensity is high, possessing a tenacious and cloying quality that clings to the air. Projection would be significant, a heavy, oppressive presence rather than an ethereal trail. Longevity would be extreme, a deeply entrenched base note, stubbornly refusing to dissipate, evolving from its initial morbid sweetness into a more pronounced, acrid fetor. It lacks any typical 'lift' or 'sparkle,' instead settling into a dense, almost suffocating olfactory texture. It is the antithesis of 'clean' or 'fresh,' instead embodying a profound, organic corruption.