P57506
Pyridine
ReagentPlus®, ≥99%
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About This Item
Empirical Formula (Hill Notation):
C5H5N
CAS Number:
Molecular Weight:
79.10
Beilstein:
103233
EC Number:
MDL number:
UNSPSC Code:
12352005
PubChem Substance ID:
NACRES:
NA.21
Bp:
115 °C (lit.)
Vapor pressure:
10 mmHg ( 13.2 °C)
20 mmHg ( 25 °C)
20 mmHg ( 25 °C)
vapor density
2.72 (vs air)
Quality Level
vapor pressure
10 mmHg ( 13.2 °C)
20 mmHg ( 25 °C)
product line
ReagentPlus®
Assay
≥99%
form
liquid
autoignition temp.
899 °F
expl. lim.
12.4 %
dilution
(for general lab use)
impurities
≤0.1% water (Karl Fischer)
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General description
Pyridine (Pyr) is a nitrogen-containing six-membered heterocyclic compound that is commonly used as a solvent in organic synthesis. It also has wide applications as a base, catalyst, and intermediate for synthesis.
Application
Pyridine can be used as a solvent:
- To synthesize glycophospholipids and phosphate diesters or phosphonate monoesters in the presence of trichloroacetonitrile as an activating reagent.
- In Knoevenagel condensation reactions.
- In the TEMPO-mediated radical polymerization of 3-vinylpyridine.
Legal Information
ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2
Storage Class Code
3 - Flammable liquids
WGK
WGK 2
Flash Point(F)
68.0 °F - closed cup
Flash Point(C)
20 °C - closed cup
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