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270970 Sigma-Aldrich

Pyridine

anhydrous, 99.8%

  • CAS Number 110-86-1

  • Empirical Formula (Hill Notation) C5H5N

  • Molecular Weight 79.10

  •  Beilstein/REAXYS Number 103233

  •  EC Number 203-809-9

  •  MDL number MFCD00011732

  •  PubChem Substance ID 57648214

  •  NACRES NA.21

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Properties

Related Categories Anhydrous, Anhydrous Solvents, Camostat Mesylate, Chemical Synthesis, Chemicals for the synthesis of candidate COVID-19 treatments,
Quality Level   100
grade   anhydrous
vapor density   2.72 (vs air)
vapor pressure   10 mmHg ( 13.2 °C)
  20 mmHg ( 25 °C)
assay   99.8%
autoignition temp.   899 °F
expl. lim.   12.4 %
impurities   <0.003% water
  <0.005% water (100 mL pkg)
evapn. residue   <0.0005%
color   colorless
refractive index   n20/D 1.509 (lit.)
bp   115 °C (lit.)
mp   −42 °C (lit.)
density   0.978 g/mL at 25 °C (lit.)
SMILES string   C1=CN=CC=C1
InChI   1S/C5H5N/c1-2-4-6-5-3-1/h1-5H
InChI key   JUJWROOIHBZHMG-UHFFFAOYSA-N

Description

General description

Pyridine is a basic N-heterocyclic compound. 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.

Application

Pyridine (py) may be used in the preparation of vanadium oxide nanoparticles and iron benzenedicarboxylates, Fe(OH)(BDC)(py)0.85 (BDC = 1,4-benzenedicarboxylate, py = pyridine). It may be employed as catalyst in Knoevenagel condensation reaction.

Pyridine may be used as a base for the conversion of:
• Alkyltrichlorosilanes to trimethoxyalkylsilanes, which are used as precursors for preparing alkylsilicates.
• 1-Indanone to 1-indanone oxime, which can undergo reductive ring-expansion to form tetrahydroquinoline.

It may also be used to catalyze the borylation reaction of haloarenes to form arylboronates without using transition metal catalysts.

Packaging

1, 6×1, 2, 4×2 L in Sure/Seal™

View returnable container options.

200 L in Pure-Pac™ 1

4×25, 100, 12×100 mL in Sure/Seal™

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
RIDADR 
UN1282 - class 3 - PG 2 - Pyridine
WGK Germany 
WGK 2
RTECS 
UR8400000
Flash Point(F) 
68.0 °F - closed cup
Flash Point(C) 
20 °C - closed cup

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles

Articles

AOAC First Action Official Method℠ 2015.04

Determination of Monofluoroacetate in Powdered Nutritional Products by Derivatization with 2-Nitrophenylhydrazine and LC-MS/MS
Keywords: Derivatizations, High performance liquid chromatography, Liquid chromatography mass spectrometry, Mass spectrometry

Pressure-Temperature Calculator for Solvents

*Calculations provide estimated results based on Antoine's Coefficients and their associated temperature range values. Antoine's Coefficients were obtained from the National Institute of Standards an...

Peer-Reviewed Papers
15

References

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