fenooli nitreerimisel saadav mürgine, väga plahvatusohtlik, halvasti lahustuv kristalliline kollane mõru tugev hape, mida kasutatakse värvina, lõhkeainete toorainena ja antiseptikumina, pale yellow, odourless crystalline solid that has been used as a military explosive, as a yellow dye, and as an antiseptic, Picric acid (from Greek pikros,“bitter”) was so named by the 19th-century French chemist Jean-Baptiste-André Dumas because of the extremely bitter taste of its yellow aqueous solution.