雄二烯酮 （英语：androstadienone）， 又叫雄甾二烯酮， androsta-4,16,-dien-3-one，是人类男性费洛蒙，这种化学物质被描述成对人类具有强烈的费洛蒙（信息素）相关的作用 雄二烯酮（费洛蒙酮）是雄性荷尔蒙睾固酮的代谢物。然而，雄二烯酮并不会产生任何雄性激素或同化激素的活性作用。 虽然研究报告显示雄二烯酮会明显的影响异性恋女人与同性恋男人的心情，并且很微妙的吸引别人的注意，但却不会明显的影响人类的行为。雄二烯酮（费洛蒙酮）目前被添加到香水中，据称能够增加异性的吸引力。

Androstadienone, also known as androsta-4,16,-dien-3-one, is an endogenous steroid that has been described as having potent pheromone-like activities in humans. The compound is synthesized from androstadienol by 3β-hydroxysteroid dehydrogenase, and can be converted into androstenone (a more potent and odorous pheromone) by 5α-reductase, which can subsequently be converted into 3α-androstenol or 3β-androstenol (also more potent and odorous pheromones) by 3-ketosteroid reductase. Androstadienone is related to the androgen sex hormones; however, androstadienone does not exhibit any androgenic or anabolic effects. Though it has been reported to significantly affect the mood of heterosexual women and homosexual men, it does not alter behavior overtly, although it may have more subtle effects on attention. Androstadienone is commonly sold in male fragrances; it is purported to increase sexual attraction. Androstadienone, in picogram quantities, has been shown to have "significant reduction of nervousness, tension and other negative feeling states" in female subjects .