| Name | 4-Pentenal |
| Synonyms | PENTENAL AI3-24690 4-Pentenal 4-PENTENAL pent-4-enal BRN 1734369 PENT-5-ENAL Pent-4-en-1-al 4-01-00-03459 (Beilstein Handbook Reference) |
| CAS | 2100-17-6 |
| EINECS | 218-265-8 |
| InChI | InChI=1/C5H8O/c1-2-3-4-5-6/h2,5H,1,3-4H2 |
| Molecular Formula | C5H8O |
| Molar Mass | 84.12 |
| Density | 0,852 g/cm3 |
| Melting Point | -89.95°C |
| Boling Point | 101-105°C |
| Flash Point | 7°C |
| JECFA Number | 1619 |
| Water Solubility | Immiscible with water. |
| Solubility | Chloroform (Soluble), DMSO (Soluble) |
| Vapor Presure | 42.9mmHg at 25°C |
| Appearance | Oil |
| Color | Pale Yellow to Yellow |
| BRN | 1734369 |
| Storage Condition | Amber Vial, Refrigerator |
| Stability | Light Sensitive |
| Sensitive | Air Sensitive |
| Refractive Index | 1.4210 |
| MDL | MFCD00151841 |
| Risk Codes | R10 - Flammable R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| UN IDs | 1989 |
| RTECS | SB1575000 |
| TSCA | Yes |
| Hazard Class | 3 |
| Packing Group | II |
| Toxicity | LD50 orl-rat: 620 mg/kg AIHAAP 23,95,62 |
| FEMA | 4262 | 4-PENTENAL |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | for organic synthesis. |