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. It exhibits cis-trans isomerism about the alkene group, and is a structural isomer of butanone.
Quick facts Names, Identifiers ...
Crotyl alcohol[1]
 Crotyl alcohol |
| Names |
| Preferred IUPAC name
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| Other names
(E)-But-2-en-1-ol
Crotyl alcohol
Crotonyl alcohol
2-Butenol |
| Identifiers |
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| ChEBI |
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| ChEMBL |
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| ChemSpider |
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| ECHA InfoCard |
100.025.533 |
| EC Number |
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| UNII |
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| UN number |
2614 |
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InChI=1S/C4H8O/c1-2-3-4-5/h2-3,5H,4H2,1H3/b3-2+ Y Key: WCASXYBKJHWFMY-NSCUHMNNSA-N Y InChI=1/C4H8O/c1-2-3-4-5/h2-3,5H,4H2,1H3/b3-2+ Key: WCASXYBKJHWFMY-NSCUHMNNBR
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| Properties |
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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: |
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Warning |
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H226, H302, H312, H315, H319 |
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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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It can be synthesized by the hydrogenation of crotonaldehyde. The compound is of little commercial interest,[2] but can be used as a reagent in laboratory organic synthesis.[3]
