pyridine


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Related to pyridine: imidazole

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

(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.
References in periodicals archive ?
The data listed in Table-2 were selected bond lengths and bond angles of [Cu2L(pyridine)6]*2H2O.
Synthesis of D in n-butanol with minor amounts of pyridine.--The mixture was stirred into a 1,000-mL reactor where 180.0 g of urea, 450.0 g of butanol, and 4.0 g (0.73%) of pyridine were added sequentially.
Rapid detection of pyridine compounds by extractive atmospheric pressure chemical ionization mass spectrometry.
Table 2 presents data on the concentration of the Lewis acid sites because Bronsted centers capable of protonating pyridine (region between 1530 and 1550 [cm.sup.-1] ([nu]CCN 19b)) have not been found.
In this paper, the amino acid fraction, obtained following the procedure described above and reported in the literature [22], is derivatized using anhydrous dimethylformamide instead of pyridine as solvent.
Substituted pyridines were used as medical scaffolds because they are part of many natural product structures [10, 11].
From the biological activity investigation, we observed that the antitumor activity of compounds 1 and 2 advanced greatly when organic ligands pyridine and Schiff bases were in coordination with Co ion.
The position of the methyl group relative to the imino nitrogen influences the catalytic activity of the 1,2-bis-benzoxazolyl benzene (41, 42), 1,2-bisbenzoxazolyl-4-methylbenzene (44, 45), 1,2-bisbenzoxazolyl-4-chlorobenzene (47, 48), 1,2-bis benzoxazolyl-4-bromobenzene (50, 51) and 2,6-bis benzoxazolyl pyridine (66, 67) vanadium complexes, the methyl group in para position to the imino nitrogen (42, 45, 48, 51 and 67) increases the electron density on the metal atom and hence this is leading to a weaker interaction between the metal centre and the [pi]-electrons of ethylene resulting in a lower activity [53], (Figure 11).
The PLP pyridine ring was well stacked with His114 and bound to Ala192 with van der Waals interaction at the opposite side (Figure 2(c)).
Market Segment by Regions, this report splits Global into several key Region, with production, consumption, revenue, market share and growth rate of Pyridine in these regions, from 2011 to 2021 (forecast), like North America, China, Europe, Japan, India, Southeast Asia split by product type, with production, revenue, price, market share and growth rate of each type Split by application, this report focuses on consumption, market share and growth rate of Pyridine in each application, can be divided into Supplements, Food, Feed, Cosmetics.
New York, NY, March 17, 2016 --(PR.com)-- According to a new market report published by Persistence Market Research, titled "Global Market Study on Pyridine: Increasing Demand for Synthetic Pyridine to Drive Growth During Forecast Period 2015 -2025 ", the global pyridine market is estimated to reach US$ 1,741.4 Mn by 2025 from US$ 786.4 Mn in 2015.
The alarm was raised after the worker dropped a one-litre glass bottle containing pyridine on the staircase of the three-storey building sparking a three-hour clean-up and evacuation on Tuesday night.