| D008670 |
Metals |
Electropositive chemical elements characterized by ductility, malleability, luster, and conductance of heat and electricity. They can replace the hydrogen of an acid and form bases with hydroxyl radicals. (Grant & Hackh's Chemical Dictionary, 5th ed) |
Metal |
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| D009584 |
Nitrogen |
An element with the atomic symbol N, atomic number 7, and atomic weight [14.00643; 14.00728]. Nitrogen exists as a diatomic gas and makes up about 78% of the earth's atmosphere by volume. It is a constituent of proteins and nucleic acids and found in all living cells. |
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| D002244 |
Carbon |
A nonmetallic element with atomic symbol C, atomic number 6, and atomic weight [12.0096; 12.0116]. It may occur as several different allotropes including DIAMOND; CHARCOAL; and GRAPHITE; and as SOOT from incompletely burned fuel. |
Carbon-12,Vitreous Carbon,Carbon 12,Carbon, Vitreous |
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| D002384 |
Catalysis |
The facilitation of a chemical reaction by material (catalyst) that is not consumed by the reaction. |
Catalyses |
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| D003500 |
Cyclization |
Changing an open-chain hydrocarbon to a closed ring. (McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed) |
Cyclizations |
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| D005609 |
Free Radicals |
Highly reactive molecules with an unsatisfied electron valence pair. Free radicals are produced in both normal and pathological processes. Free radicals include reactive oxygen and nitrogen species (RONS). They are proven or suspected agents of tissue damage in a wide variety of circumstances including radiation, damage from environment chemicals, and aging. Natural and pharmacological prevention of free radical damage is being actively investigated. |
Free Radical |
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| D001386 |
Azides |
Organic or inorganic compounds that contain the -N3 group. |
Azide |
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| D001554 |
Benzene |
Toxic, volatile, flammable liquid hydrocarbon byproduct of coal distillation. It is used as an industrial solvent in paints, varnishes, lacquer thinners, gasoline, etc. Benzene causes central nervous system damage acutely and bone marrow damage chronically and is carcinogenic. It was formerly used as parasiticide. |
Benzol,Benzole,Cyclohexatriene |
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| D001686 |
Biological Phenomena |
Biological processes, properties, and characteristics of the whole organism in human, animal, microorganisms, and plants, and of the biosphere. |
Biological Processes,Biologic Phenomena,Biological Phenomenon,Biological Process,Phenomena, Biological,Phenomena, Biologic,Phenomenon, Biological,Process, Biological,Processes, Biological |
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| D015363 |
Quinolones |
A group of derivatives of naphthyridine carboxylic acid, quinoline carboxylic acid, or NALIDIXIC ACID. |
Ketoquinoline,Ketoquinolines,Oxoquinoline,Oxoquinolines,Quinolinone,Quinolinones,Quinolone |
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