A class of organic compounds that contain nitrogen, isolated from plants.
Small but complex nitrogen-containing metabolite produced by plants as a defense against herbivores. Examples include caffeine, morphine, and colchicine.
a nitrogen containing substance found in plants.
Any of a group of complex organic bases of vegetable origin which have pronounced physiological effects on people.
Alkaloidi Alkaloid Organic compounds containing nitrogen. A wood extractive.
Highly active plant constituent contain nitrogen atoms.
natural nitrogen-containing bases found in plants
a naturally occurring molecule that contains nitrogen
a nitrogenous organic compound derived from plants
a nitrogen ous organic molecule that has a pharmacological effect on human s and animal s
a nitrogenous organic molecule that has a pharmacological effect on human s and other animal s
an n-containing compound of plant origin containing heterocyclic rings and one or more basic nitrogens
an organic compound made out of carbon, hydrogen, nitrogen and sometimes oxygen
a plant-derived compound that is toxic or physiologically active, contains a nitrogen in a heterocyclic ring, is basic, has a complex structure, and is of limited distribution in the plant kingdom
a base, which contains nitrogen; many of the active substances in plants and alkaloids, for example, morphine, cocaine, mescaline, etc.
Organic compound containing carbon, hydrogen, and nitrogen which has a basic reaction.
A naturally occuring organic compound containing nitrogen that acts as a base. Many alkaloids are physiologically active and can be used in small quantities as medicines, but if taken in larger doses they can be extremely poisonous. An example is caffeine.
Naturally occurring basic organic group of compounds containing at least one nitrogen atom in a ring structure in the molecule. Usually plant origin, physiologically active, insoluble in water, and often found in salts of organic acids.
One of a group of organic alkaline (basic) substances obtained from plants. It reacts with acids to form salts.
An organic compound derived from plants. Opium alkaloids used in medicine include morphine, codeine, thebaine, papaverine and noscapine.
Group of organic bases, often of plant origin, known for their physiological activity and hence used as drugs
Any organic agent isolated from plants that contains nitrogen and reacts with an acid to form a salt.
Any of various physiologically active, nitrogen-containing organic bases derived from plants. Common alkaloids include atropine, caffeine, cocaine, codeine, mescaline, morphine, narcotine, nicotine, noscapine, papaverine, quinine, strychnine, and thebaine.
a complex organic compound derived from plants that contains nitrogen; many alkaloids have pharmacological effects.
A member of a large group of chemicals that are made by plants and have nitrogen in them. Some alkaloids have been shown to work against cancer.
Alkaline substances found in certain plants, such as berberine and hydrastine from golden seal.
Alkaloids are a family of plant chemicals. They contain nitrogen, and usually oxygen. Alkaloids are commonly colorless and bitter-tasting. Chemically, they are usually alkaline, with nitrogen as the base. They react with acids, forming soluble salts in reaction. Many alkaloids have physiological toxic effects on humans. Well-known alkaloids include caffeine, cocaine, nicotine and morphine. Definition link: alkaloid
A class of bitter-tasting, basic organic compounds with nitrogen-containing rings. Alkaloids often have powerful effects on living things. Examples are cocaine, nicotine, strychnine, caffeine, and morphine.
heterogeneous group of alkaline, organic, compounds containing nitrogen and usually oxygen; usually colorless and bitter-tasting; especially found in seed plants.
Any organic compound part of the large group of nitrogenous substances that is composed of carbon, hydrogen, nitrogen, and usually oxygen, that are found naturally in plants. Some of these plants have extracts that are considered pharmacologically active. As a medication, it is in the class of anticancer drugs that inhibit cancer cell growth by stopping cell division in mitosis. Specifically, they prevent the creation of chromosome spindles needed for the duplication of cells.
Any of a number of colorless, crystalline, bitter organic substances, such as caffeine, morphine, quinine, and strychnine, having alkaline properties and containing nitrogen. They are found in plants and sometimes animals and can have a strong toxic effect in humans.
nitrogen containing compound found in herbs. Usually a central nervous system depressant.
One of a varied family of alkaline, nitrogen-containing substances, usually plant-derived, reacting with acids to form salts. Normally intensely bitter, alkaloids form a body of substances widely used in drug and herbal therapy. They are usually biologically active and have a toxic potential. The term is more pharmaceutical and medical than chemical since alkaloids come from a variety of otherwise unrelated organic compounds. (Examples: caffeine, morphine, berberine).
organic substances occurring naturally, which are basic, forming salts with acids. The basic group is usually an amino function.
A large, varied group of complex nitrogen-containing compounds, usually alkaline, that react with acids to form soluble salts, many of which have physiological effects on humans. Includes nicotine, cocaine, caffeine, etc.
An alkaloid, strictly speaking, is a naturally-occurring amine produced by a plant, but amines produced by animals and fungi are also called alkaloids. Many alkaloids have pharmacological effects on humans and animals. The name derives from the word alkaline; originally, the term was used to describe any nitrogen-containing base.