The note is an olfactory assault, immediately pungent and overwhelmingly sulfurous, often described with qualities akin to burning rubber, charred garlic, or intense roasted coffee grounds pushed to the point of acridity. Its initial projection is immense, a sharp, almost metallic stab to the senses, searingly intense and unmistakably animalic. There's a raw, almost feral quality, a primal warning. While its initial impact is that of a top note due to the volatility of its key molecules, its tenacity and low odor threshold mean that even trace amounts can linger persistently, coloring the entire composition. In extremely, almost infinitesimally diluted forms, some highly skilled perfumers might attempt to coax out a bitter green, subtly herbaceous, or even a nuanced 'dirty floral' aspect, but the dominant impression remains one of unmistakable, challenging intensity. It is not 'soft' or 'smooth'; it is rough, uncompromising, and designed for immediate impact and lingering memory.