#nitrite

• Amyl — An acyclic saturated pentavalent alkyl radical, with the general structural formula -C5H11, formally derived from pentane by removing one hydrogen atom; an alternative systematic name for the pentyl group. This compound plays an essential structural role in industrial organic synthesis and pharmacology, serving as the core component in volatile chemicals such as amyl nitrite, used clinically as a potent vasodilator.
• Nitrite — A salt of nitrous acid containing the stable NO2 functional group; in modern chemical and industrial nomenclature, it is known as a nitrite, widely used in the food industry as a preservative and color stabilizer for meat products, or in metallurgy as a corrosion inhibitor.
• Nitrous acid — A systematic name rarely used to designate nitrous acid (HNO2) in correlation with its salts; also, a term applied in old records to the hydrated forms or unstable aqueous solutions of lower-valence nitrogen oxides.