Pyridine is a basic heterocyclic organic compound with the chemical formula C5H5N. It is structurally related to benzene, with one methine group (=CH−) replaced by a nitrogen atom. It is a highly flammable, weakly alkaline, water-miscible liquid with a distinctive, unpleasant fish-like smell. Pyridine is colorless, but … See more Physical properties Pyridine is diamagnetic. Its critical parameters are: pressure 5.63 MPa, temperature 619 K and volume 248 cm ·mol . In the temperature range 340–426 °C its vapor … See more Impure pyridine was undoubtedly prepared by early alchemists by heating animal bones and other organic matter, but the earliest documented reference is attributed to the Scottish … See more Historically, pyridine was extracted from coal tar or obtained as a byproduct of coal gasification. The process is labor-consuming and … See more Pesticides and pharmaceuticals The main use of pyridine is as a precursor to the herbicides paraquat and diquat. The first synthesis step … See more Pyridine is not abundant in nature, except for the leaves and roots of belladonna (Atropa belladonna) and in marshmallow (Althaea officinalis). Pyridine derivatives, however, are often part of biomolecules such as alkaloids. In daily life, trace … See more Because of the electronegative nitrogen in the pyridine ring, pyridine enters less readily into electrophilic aromatic substitution reactions than benzene derivatives. Instead, in terms of its reactivity, pyridine resembles nitrobenzene. Correspondingly … See more Pyridine is a toxic, flammable liquid with a strong and unpleasant fishy odour. Its odour threshold of 0.04 to 20 ppm is close to its threshold limit of 5 ppm for adverse effects, thus most … See more Web2,2'-bipyridine is a bipyridine in which the two pyridine moieties are linked by a bond between positions C-2 and C-2'. It has a role as a ferroptosis inhibitor and a chelator. 2,2'-Bipyridine is a natural product found in Dichilus strictus, Dichilus gracilis, and other organisms with data available.
pyridine_百度百科
WebProduction Capacity. Shanghai Rainbow Chemicals Co. Ltd was founded in June 2008. The headquarters and R&D center are located in the state science and technology park of East China University of Science and Technology, Shanghai. Our business includes research, development, and production of fine chemicals and biochemical materials. WebPyridine is a basic heterocyclic organic compound. It has the chemical formula . Pyridine is structurally related to benzene, with one methine group i.e., =CH- is replaced by a … ftir thickness
PYRIDINE CAMEO Chemicals NOAA
WebPyrimidine (C 4 H 4 N 2; / p ɪ ˈ r ɪ. m ɪ ˌ d iː n, p aɪ ˈ r ɪ. m ɪ ˌ d iː n /) is an aromatic, heterocyclic, organic compound similar to pyridine (C 5 H 5 N). One of the three … http://thegoodscentscompany.com/data/rw1009251.html WebPyrazine is a heterocyclic aromatic organic compound with the chemical formula C 4 H 4 N 2.It is a symmetrical molecule with point group D 2h.Pyrazine is less basic than pyridine, … ftir tio2 anatase