The invention relates to a new conjugate, based on triiodomethane, which also contains at least one natural organic and/or modified natural organic and/or inorganic thickener. Cellulose ethers or starch ethers are particularly suitable for use as the thickener. Said conjugate can be used as a disinfectant and can be introduced into ointments or creams. As a hydrogel containing water and a solvent in addition to the conjugate, with a viscosity of between 5,000 and 400,000 mPa*s (20 °C), preferably between 10,000 and 30,000 mPa*s (20 °C), the product is extremely suitable for use as a disinfectant cleaner and hygiene product for cleaning and maintaining animal horn, for example of horses, cattle and sheep. In addition, the hydrogel can contain at least one polyalcohol, in particular glycerine. According to one production method, a hydrogel is produced from water and a thickener and the polyalcohol is first added thereto at a temperature of between 20 and 60 °C, followed by the solvent containing the triiodomethane.