pyridine

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pyridine

 [pir´ĭ-dēn]
1. a toxic, colorless, liquid hydrocarbon usually derived from coal tar and used as a laboratory and industrial intermediate.

pyr·i·dine

(pir'i-dēn, -din),
A colorless volatile liquid of empyreumatic odor and burning taste, resulting from the dry distillation of organic matter containing nitrogen; used as an industrial solvent, in analytic chemistry, and for denaturing alcohol.

pyridine

/pyr·i·dine/ (pir´ĭ-din)
1. a coal tar derivative, C5H5N, derived also from tobacco and various organic matter.
2. any of a group of substances homologous with normal pyridine.

pyridine

(pĭr′ĭ-dēn′)
n.
A flammable, colorless or yellowish liquid base, C5H5N, having a penetrating odor and serving as the parent compound of many biologically important derivatives. It is used as a solvent and in the manufacture of various agricultural chemicals, rubber products, water repellents, dyes, and drugs.

py·rid′ic (pī-rĭd′ĭk) adj.

pyridine

1. a substance derived from coal tar and also from tobacco and various organic materials. Used in industry as a solvent and in the synthesis of organic compounds.
2. any of a group of substances homologous with normal pyridine. The pyridines are serious poisons causing damage to most organs especially nervous and respiratory systems and skin.
References in periodicals archive ?
As heating rate increases, for pyridines and quinolines (DBE = 7), a relative obvious decrease in relative abundance is mainly observed in those species whose carbon number remains between 21 and 37.
pyridine homologues) in oil are particularly resistant to hydrotreatment [11] and are stronger inhibitors of hydrodesulphurization reactions than neutral nitrogen compounds in oil [12], reducing the efficiency of S and O removal [13, 14].
Based on the results of early studies of raw Green River shale oils Poulson [9] concluded that basic nitrogen compounds in shale oil are principally of pyridine type with small amounts of amines present.
Vertellus CEO Timothy Zappala said, "We are the global leader in pyridine and picoline chemistry.
Vertellus is the #1 global producer of pyridine and picolines, specialty pyridine derivatives, DEET, castor oil derivatives and systems, and citrate polymer additives and systems, and the world's #2 producer of Vitamin B-3.