2-Vinylpyridine

2-Vinylpyridine is an organic compound with the formula CH2CHC5H4N. It is a derivative of pyridine with a vinyl group in the 2-position, next to the nitrogen. It is a colorless liquid, although samples are often brown. It is used industrially as a precursor to specialty polymers and as an intermediate in the chemical, pharmaceutical, dye, and photo industries. Vinylpyridine is sensitive to polymerization. It may be stabilized with a polymerisation inhibitor such as tert-butylcatechol. Owing to its tendency to polymerize, samples are typically refrigerated.

2-Vinylpyridine
Names
Preferred IUPAC name
2-Ethenylpyridine
Other names
2-Vinylpyridine
2VP
Identifiers
3D model (JSmol)
104505
ChemSpider
ECHA InfoCard 100.002.618
EC Number
  • 202-879-8
RTECS number
  • UU1040000
UNII
UN number 3073
  • InChI=1S/C7H7N/c1-2-7-5-3-4-6-8-7/h2-6H,1H2
    Key: KGIGUEBEKRSTEW-UHFFFAOYSA-N
  • InChI=1/C7H7N/c1-2-7-5-3-4-6-8-7/h2-6H,1H2
    Key: KGIGUEBEKRSTEW-UHFFFAOYAO
  • C=CC1=CC=CC=N1
Properties
C7H7N
Molar mass 105.140 g·mol−1
Appearance colorless liquid
Density 0.977 g/cm3
Melting point −50 °C (−58 °F; 223 K)
Boiling point 158 °C (316 °F; 431 K)
27.5 g/L
Vapor pressure 96 hPa (72 mmHg) at 100 °C
Acidity (pKa) 4.98
Viscosity 1.17 mPas
Hazards
GHS labelling:
Danger
H226, H301, H302, H311, H314, H317, H331, H411
P210, P233, P240, P241, P242, P243, P260, P261, P264, P270, P271, P272, P273, P280, P301+P310, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P311, P312, P321, P322, P330, P333+P313, P361, P363, P370+P378, P391, P403+P233, P403+P235, P405, P501
Flash point 48 °C (118 °F; 321 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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