#photographic developer

• Adurol — A commercial and technical name assigned to a halogenated derivative of hydroquinone (such as monochlorohydroquinone or monobromohydroquinone), historically used in analog photography as a rapid, high-contrast developing agent. In modern industrial chemistry, the compound serves as an intermediate in the organic synthesis of specialized polymers, stabilizers, or antioxidants, valued for its potent reducing properties.
• Amidol — A crystalline organic compound from the aminophenol class, structurally used as an exceptionally active photographic developing agent, chemically known as 2,4-diaminophenol dihydrochloride. It possesses the unique property of developing effectively in slightly acidic or neutral solutions without requiring the addition of strong alkalis, producing high-quality black-and-white photographic images with rich, deep black tones.