Crotyl alcohol

Crotyl alcohol, or crotonyl alcohol, is an unsaturated alcohol. It is a colourless liquid that is moderately soluble in water and miscible with most organic solvents. Two isomers of this alcohol exist, cis and trans.

Crotyl alcohol[1]
Crotyl alcohol
Names
Preferred IUPAC name
(2E)-But-2-en-1-ol
Other names
(E)-But-2-en-1-ol
Crotyl alcohol
Crotonyl alcohol
2-Butenol
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.025.533
EC Number
  • 207-996-8
UNII
UN number 2614
  • InChI=1S/C4H8O/c1-2-3-4-5/h2-3,5H,4H2,1H3/b3-2+ checkY
    Key: WCASXYBKJHWFMY-NSCUHMNNSA-N checkY
  • InChI=1/C4H8O/c1-2-3-4-5/h2-3,5H,4H2,1H3/b3-2+
    Key: WCASXYBKJHWFMY-NSCUHMNNBR
  • C\C=C\CO
Properties
C4H8O
Molar mass 72.10 g/mol
Density 0.8454 g/cm3
Melting point < 25 °C (77 °F; 298 K)
Boiling point 121.2 °C (250.2 °F; 394.3 K)
Hazards
GHS labelling:
GHS02: FlammableGHS07: Exclamation mark
Warning
H226, H302, H312, H315, H319
P210, P233, P240, P241, P242, P243, P264, P270, P280, P301+P312, P302+P352, P303+P361+P353, P305+P351+P338, P312, P321, P322, P330, P332+P313, P337+P313, P362, P363, P370+P378, P403+P235, P501
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

It can be synthesized by the hydrogenation of crotonaldehyde. The compound is of little commercial interest.[2]

See also

References
  1. Merck Index, 11th Edition, 2604
  2. Falbe, Jürgen; Bahrmann, Helmut; Lipps, Wolfgang; Mayer, Dieter. "Alcohols, Aliphatic". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a01_279..
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