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Model No:CAS 53242-18-5
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Pharmaceutical intermediates 5-Amino-3-bromo-2-methoxypyridine...
Brand:Custchem
Model No:CAS 19524-08-4
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Place of Origin:China
Productivity:Over 600 tons per year
Pharmaceutical Intermediates 4-Chloro-3-methylpyridine hydrochloride Synonyms:...
Brand:Custchem
Model No:CAS 22353-35-1
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Place of Origin:China
Productivity:Over 600 tons per year
Pharmaceutical Intermediates 2-Amino-3-chloro-5-nitropyridine...
Brand:Custchem
Model No:CAS1001635-30-8
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Place of Origin:China
Productivity:Over 600 tons per year
Pharmaceutical Intermediates 3-Amino-5-methylpyridine-2-carbonitrile Synonyms:...
Brand:TYSchem
Model No:CAS 56686-16-9
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Place of Origin:China
Productivity:Over 600 tons per year
Pharmaceutical intermediates 5-Bromo-2,4-dimethoxypyrimidine...
Brand:Custchem
Model No:CAS 101990-73-2
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Place of Origin:China
Productivity:Over 600 tons per year
Pharmaceutical intermediates Pyridine,2-chloro-4-(chloromethyl)-(9CI) CAS 101990-73-2...
Brand:Custchem
Model No:CAS 26156-48-9
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Place of Origin:China
Productivity:Over 600 tons per year
Pharmaceutical intermediates Methyl-2-bromoisonicotinate CAS 26156-48-9...
Brand:Custchem
Model No:CAS 26218-78-0
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Place of Origin:China
Productivity:Over 600 tons per year
Pharmaceutical Intermediates Methyl 6-bromonicotinate CAS 26218-78-0...
Brand:Custchem
Model No:CAS 455-69-6
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Place of Origin:China
Productivity:Over 600 tons per year
Pharmaceutical intermediates Methyl 2-fluoroisonicotinate CAS 455-69-6...
Brand:Custchem
Model No:CAS 21190-89-6
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Place of Origin:China
Productivity:Over 600 tons per year
Pharmaceutical intermediates Ethyl 6-chloropyridine-2-carboxylate CAS 21190-89-6 Synonyms: 6-Chloropyridine-2-carboxylic acid ethyl ester;ethyl 6-chloropyridine-2-carboxylate;2-Pyridinecarboxylic acid, 6-chloro-, ethyl ester Application: Ethyl...
Brand:Custchem
Model No:CAS 89978-52-9
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Place of Origin:China
Productivity:Over 600 tons per year
Pharmaceutical Intermediates Ethyl 2-bromopyridine-4-carboxylate CAS No.: 89978-52-9...
Brand:Custchem
Model No:CAS 26893-73-2
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Place of Origin:China
Productivity:Over 600 tons per year
Pharmaceutical Intermediates 6-Methylpyridine-2-carboxylic acid CAS No.: 26893-73-2...
Brand:Custchem
Model No:CAS 1427-06-1
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Place of Origin:China
Productivity:Over 600 tons per year
Pharmaceutical Intermediates 6-Fluoronicotinic acid methyl ester CAS No.: 1427-06-1...
Brand:Custchem
Model No:CAS 403-45-2
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Place of Origin:China
Productivity:Over 600 tons per year
Pharmaceutical intermediates 6-Fluoronicotinic acid CAS No.: 403-45-2...
Brand:Custchem
Model No:CAS 4684-94-0
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Place of Origin:China
Productivity:Over 600 tons per year
Pharmaceutical intermediates 6-Chloropicolinic acid CAS No.: 4684-94-0...
Brand:Custchem
Model No:CAS 18368-63-3
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Place of Origin:China
Productivity:Over 600 tons per year
Pharmaceutical intermediates 6-Chloro-2-picoline CAS No.: 18368-63-3 Synonyms: 2-Chloro-6-Pilcoline;C234;6-CHLORO-2-METHYLPYRIDINE;6-CHLORO-2-PICOLINE;2-CHLORO-6-METHYLPYRIDINE;2-CHLORO-6-PICOLINE;2-Picoline, 6-chloro-;Pyridine,...
Brand:Custchem
Model No:CAS 26218-75-7
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Place of Origin:China
Productivity:Over 600 tons per year
Pharmaceutical Intermediates 6-Bromopyridine-2-carboxylic acid methyl ester CAS No.: 26218-75-7...
Brand:Custchem
Model No:CAS 21190-88-5
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Place of Origin:China
Productivity:Over 600 tons per year
Pharmaceutical intermediates 6-Bromopyridine-2-carboxylic acid ethyl ester CAS No.: 21190-88-5...
Brand:Custchem
Model No:CAS 443956-08-9
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Place of Origin:China
Productivity:Over 600 tons per year
Pharmaceutical intermediates 6-Bromo-2-nitro-pyridin-3-ol CAS No.: 443956-08-9...
Brand:Custchem
Model No:CAS 22282-96-8
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Place of Origin:China
Productivity:Over 600 tons per year
Pharmaceutical intermediates 6-Bromo-2-methyl-3-nitropyridine CAS No.: 22282-96-8...
Brand:Custchem
Model No:CAS 89284-11-7
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Place of Origin:China
Productivity:Over 600 tons per year
Pharmaceutical intermediates 6-Amino-2,3-dibromopyridine CAS No.: 89284-11-7 Synonyms: 6-Amino-2,3-dibromopyridine;5,6-Dibromo-2-pyridinamine;5,6-DibroMo-pyridin-2-ylaMine;2-Pyridinamine, 5,6-dibromo-;5,6-Dibromo-2-pyridinamine 97% Application:...
Brand:Custchem
Model No:CAS 181123-11-5
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Place of Origin:China
Productivity:Over 600 tons per year
Pharmaceutical intermediates 5-Chloro-3-nitropyridine-2-carbonitrile CAS No.: 181123-11-5...
Model No:CAS 375368-84-6
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Pharmaceutical intermediates 5-Chloro-2-fluoro-3-methylpyridine CAS No.: 375368-84-6...
Brand:Custchem
Model No:CAS 29682-15-3
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Place of Origin:China
Productivity:Over 600 tons per year
Pharmaceutical intermediates 5-Bromopyridine-2-carboxylic acid methyl ester CAS No.: 29682-15-3...
Brand:Custchem
Model No:CAS 30766-11-1
Transportation:Ocean,Air,Express
Packaging:Aluminium foil bag, drum or as require
Supply Ability:Over 600 tons per year
Place of Origin:China
Productivity:Over 600 tons per year
Pharmaceutical intermediates 5-Bromopyridine-2-carboxylic acid CAS No.: 30766-11-1...
Pyridine, an organic compound with the chemical formula C5H5N, is a six-membered heterocyclic compound containing a nitrogen heteroatom. It can be regarded as a compound in which one (CH) in the benzene molecule is substituted by N, so it is also called nitrobenzene. It is a colorless or slightly yellow liquid with a stench.
Foreign name: pyridine
Alias: Azabenzene
Chemical formula: C5H5N
Molecular weight: 79.102
CAS login number: 110-86-1
EINECS accession number: 203-809-9
Melting point: -41.6 ℃
Boiling point: 15.3℃
Water soluble: Soluble
Density: 0.983 g/cm³
Exterior: Colorless liquid
Flash point: 20 ℃ (closed)
Application: Used in the manufacture of vitamins, sulfonamides, pesticides and plastics, etc.
Security description: S7; S16; S22; S24/25; S26; S28; S36/37/39; S38; S45; S61
Hazard Symbols: F; Xn
Hazard description: R11; R20/21/22
UN Dangerous Goods Number: 1282
Physical properties:
Melting point: -41.6℃
Boiling point: 115.3℃
Flash point: 20℃
Density: 0.983g/cm3
Ignition temperature: 482℃
Upper explosion limit (V/V): 12.4%
Lower explosion limit (V/V): 1.7%
Critical temperature (℃): 346.85
Critical pressure (MPa): 6.18
Refractive index: 1.509 (20℃)
Appearance: colorless liquid
Solubility: Miscible with water, alcohol, ether, petroleum ether, benzene, oil and other solvents
Chemical properties:
Pyridine and its derivatives are more stable than benzene, and their reactivity is similar to that of nitrobenzene. Typical aromatic electrophilic substitution reactions occur at the 3 and 5 positions, but the reactivity is lower than that of benzene, and nitration, halogenation, sulfonation and other reactions are generally not easy to occur. Pyridine is a weak tertiary amine that can form water-insoluble salts with various acids (picric acid or perchloric acid, etc.) in ethanol solution. The pyridine used in industry contains about 1% of 2-methylpyridine, so it can be separated from its homologues by taking advantage of the difference in salt-forming properties. Pyridine can also form crystalline complexes with various metal ions. Pyridine is easier to reduce than benzene, such as reducing to hexahydropyridine (or piperidine) under the action of metal sodium and ethanol. Pyridine reacts with hydrogen peroxide and is easily oxidized to N-pyridine oxide.
Application
It is used in the manufacture of vitamins, sulfonamides, pesticides and plastics; it can also be used as an alkaline solvent, and it is also an excellent solvent for deacidification and acylation reactions; it can also be used as a carbonyl group for polymerization, oxidation, and acrylonitrile. It can also be used as a catalyst for chemical reactions, etc.; it can also be used as a silicone rubber stabilizer, a raw material for anion exchange membranes, etc.
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.