The distinction between pheromones and odorants—chemicals that are consciously detected as odors—can be blurry, and some researchers classify pheromones as a type of odorant.

信息素和 odorants （被检测为气味的化学物质）之间的区别可能是模糊的，一些研究人员将信息素归类为一种 odorant。