#nitrogen compound

• Alkaloid — A nitrogenous organic substance, typically possessing a basic (alkaline) character and a complex heterocyclic structure, primarily biosynthesized by plants, but also by certain fungi or animals. Alkaloids exhibit intense pharmacodynamic action on the central nervous system and the human body, functioning, depending on the dosage, as essential medicines, stimulants, or highly violent poisons (for example: morphine, caffeine, nicotine, atropine, quinine).
• Aldimines — A class of nitrogenous organic compounds formally derived from an aldehyde, by replacing the carbonyl oxygen atom with an imino group (=N-R or =N-H). These represent secondary imines or Schiff bases with the general structure R-CH=N-R', serving as highly valuable intermediates in fine organic synthesis, drug manufacturing, and enzymatic biochemistry.
• Aldoxime — A nitrogenous organic compound belonging to the oxime class, formally or practically obtained through the condensation reaction of an aldehyde with hydroxylamine (NH2OH), having the general structure R-CH=N-OH. This type of oxime is characterized by the presence of a hydrogen atom bonded to the azomethine carbon, unlike ketoximes, serving as a valuable intermediate in nitrile and amide synthesis.
• Aminous — Containing or exhibiting the characteristics of an amino group or an nitrogen-modified carbohydrate structure; relating to compounds that possess a high content of aminic radicals. It can also function contextually as a simplified structural or linguistic variant for amino sugars found in the composition of complex polysaccharides within cell walls.
• Azoic — In organic chemistry, containing the azo functional group or relating to synthetic dyes based on this group; in geology and paleontology, completely devoid of traces of animal or plant life, a term used historically to describe geological formations prior to the appearance of the first living organisms.
• Nitrosyl — A monovalent chemical radical consisting of a nitrogen atom bonded to an oxygen atom (-NO), known in modern nomenclature as the nitrosyl radical; it represents an active functional group in the synthesis of organo-nitrogen compounds and in the study of redox reactions.