E.g. benzyl benzoate, benzyl salicylate, benzyl cinnamate, dibenzyl ether, benzyl butyl phthalate . Other ingredients include citric acid, natural flavor, pectin, xanthan gum, sodium benzoate, and potassium sorbate. Ingredients include carbonated water, sugar, citric acid, sodium benzoate and potassium sorbate, and guarana extract. The resulting calcium benzoate is converted to benzoic acid with hydrochloric acid. Due to additives such as benzoic acid/benzoate in the injectable form. Other treatments include lindane, benzyl benzoate, crotamiton, malathion, and sulfur preparations. Consumption of sodium benzoate may also cause hyperactivity. Benzyl benzoate was first studied medically in 1918. A preparation containing sodium phenylacetate and sodium benzoate is available under the trade name Ammonul. Another example is SDA 40-B, which contains tert-butyl alcohol and denatonium benzoate, N.F. Traditional preservatives, such as sodium benzoate have raised health concerns in the past. He found the compound as a product from the thermal dehydration of ammonium benzoate. Metronidazole is bitter and so the liquid suspension contains metronidazole benzoate. "Cryptanaerobacter phenolicus" is a bacterium species that produces benzoate from phenol via 4-hydroxybenzoate. The results were inconsistent regarding sodium benzoate, so the FSA recommended further study.