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Description
4-Pentenal is used in the preparation of 6-octen-3-one by addition with ethylene using 2,4-pentanedionatobis(ethylene)rhodium(I) as a catalyst.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
4-Pentenal is used in the preparation of 6-octen-3-one by addition with ethylene using 2,4-pentanedionatobis(ethylene)rhodium(I) as a catalyst.
Solubility
Immiscible with water.
Notes
Air sensitive. Incompatible with strong oxidizing agents.

Specifications
Specifications
Density | 0.852 |
Boiling Point | 101°C to 105°C |
Flash Point | 7°C (44°F) |
Linear Formula | H2C=CH(CH2)2CHO |
Refractive Index | 1.417 |
Quantity | 1 g |
UN Number | UN1989 |
Beilstein | 1734369 |
Sensitivity | Air Sensitive |
Solubility Information | Immiscible with water. |
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Safety and Handling


- 4-Pentenal
- Danger
- Acute toxicity Category 4
- Flammable liquid Category 2
- H225-Highly flammable liquid and vapour.
- H302-Harmful if swallowed.
- H312-Harmful in contact with skin.
- H332-Harmful if inhaled.
- P210-Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
- P264-Wash face, hands and anyexposed skin thoroughly after handling.
- P280-Wear protective gloves/protective clothing/eye protection/face protection.
- P301+P330+P331-IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
- P303+P361+P353-IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/ shower.
- P304+P340-IF INHALED: Remove person to fresh air and keep comfortable for breathing.
- P312-Call a POISON CENTER/doctor/if you feel unwell.
- MIXTURE LIST-Contains : 4-Pentenal
RUO – Research Use Only
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