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pyridine

XDict

n. 比啶[治喘病药]

PyDict

比啶[治喘病药]

WordNet (r) 3.0 (2006) (WordNet)

pyridine
n 1: a toxic colorless flammable liquid organic base with a
disagreeable odor; usually derived from coal

The Collaborative International Dictionary of English v.0.48 (gcide)

Pyridine \Pyr"i*dine\, n. [From Gr. ? fire.] (Physiol. Chem.)
A nitrogenous base, {C5H5N}, obtained from the distillation
of bone oil or coal tar, and by the decomposition of certain
alkaloids, as a colorless liquid with a peculiar pungent
odor. It is the nucleus of a large number of organic
substances, among which several vegetable alkaloids, as
nicotine and certain of the ptoma["i]nes, may be mentioned.
See {Lutidine}.
[1913 Webster]

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Pyridine - Wikipedia
Pyridine is a basic heterocyclic organic compound with the chemical formula C 5 H 5 N It is structurally related to benzene, with one methine group (=CH−) replaced by a nitrogen atom (=N−) It is a highly flammable, weakly alkaline, water-miscible liquid with a distinctive, unpleasant fish-like smell
Pyridine | C5H5N | CID 1049 - PubChem
Pyridine is a colorless liquid with an unpleasant smell It can be made from crude coal tar or from other chemicals Pyridine is used to dissolve other substances It is also used to make many different products such as medicines, vitamins, food flavorings, paints, dyes, rubber products, adhesives, insecticides, and herbicides
Pyridine - American Chemical Society
Pyridine is a colorless liquid with a foul odor and several hazardous properties In the late 1840s, physician chemist Thomas Anderson at the University of Edinburgh produced several liquids by heating animal bones to high temperatures
Pyridine anhydrous, 99. 8 110-86-1 - MilliporeSigma
Pyridine is a basic N-heterocyclic compound It acts as nitrogen donor ligand and forms many metal-pyridine complexes It acts as nitrogen donor ligand and forms many metal-pyridine complexes Its complexes having tetrahedral and octahedral geometries can be differentiated by infra-red spectral investigations
Pyridine | Aromatic, Aliphatic, Nitrogenous | Britannica
pyridine, any of a class of organic compounds of the aromatic heterocyclic series characterized by a six-membered ring structure composed of five carbon atoms and one nitrogen atom The simplest member of the pyridine family is pyridine itself, a compound with molecular formula C 5 H 5 N
Pyridines - Chemistry Online
Pyridine is a colorless liquid that boils at 115 ºC It used to be obtained almost exclusively from coal tar Today, it is obtained industrially from ammonia and acetylene Pyridine like benzene has 6 π electrons (aromatic Hückel) Its structure is planar with bond angles of 120º
Pyridine - Some Industrial Chemicals - NCBI Bookshelf
Pyridine is widely used as a solvent in organic chemistry and in industrial practice Pyridine is an effective, basic solvent that is relatively unreactive, which makes it a good acid scavenger Pyridine is the solvent of choice for acylation and dehydrochlorination reactions
Pyridine | Formula, Properties Application
Pyridine is a heterocyclic organic compound that is often described as a benzene ring with one CH group replaced by a nitrogen atom It is an important part of many biological and industrially significant compounds, offering a wide array of uses
Pyridine: Structure, Properties, and Applications | Algor Cards
Pyridine is a cornerstone in organic chemistry due to its distinctive structure and pronounced basicity, which enable a plethora of synthetic applications It serves as a ligand in metal complexes, which are important in catalysis, and its basicity is exploited in deprotonation reactions
What is Pyridine? - BYJUS
Pyridine is a chemical product composed of acetaldehyde, ammonia and formaldehyde, combined with a catalyst and reacted at atmospheric pressure of 250-500 degrees Celsius It is used in pharmaceuticals, solvents and dyes

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