| Name | 4-Methyl-2-pentenoic acid |
| Synonyms | 4-methyl-2-pentenoicaci Methyl-2-pentenoic acid 4-Methyl-2-pentenoic acid 4-methylpent-2-enoic acid 4-METHYL-2-PENTENOIC ACID 2-Pentenoic acid, 4-methyl- 4-Methylpent-2-en-1-oic acid (E)-4-Methylpent-2-enoic acid (2E)-4-methylpent-2-enoic acid 4-Methyl-2-pentenoic Acid (stabilized with HQ) |
| CAS | 10321-71-8 |
| EINECS | 233-706-4 |
| InChI | InChI=1/C6H10O2/c1-5(2)3-4-6(7)8/h3-5H,1-2H3,(H,7,8)/b4-3+ |
| Molecular Formula | C6H10O2 |
| Molar Mass | 114.14 |
| Density | 0,955 g/cm3 |
| Melting Point | 35°C |
| Boling Point | 108 °C (15 mmHg) |
| Flash Point | >100°(212°F) |
| JECFA Number | 1818 |
| Water Solubility | Slightly soluble in water. Soluble in acetone, ether, ethanol. |
| Vapor Presure | 0.052mmHg at 25°C |
| Appearance | clear liquid |
| Color | Colorless to Light yellow to Light orange |
| pKa | pK1:4.70 (25°C) |
| Storage Condition | Refrigerator |
| Refractive Index | 1.447-1.449 |
| MDL | MFCD00043804 |
| Risk Codes | R34 - Causes burns R22 - Harmful if swallowed R36 - Irritating to the eyes |
| Safety Description | S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | 3265 |
| TSCA | Yes |
| Hazard Note | Irritant |
| Hazard Class | 8 |
| Packing Group | III |
| FEMA | 4180 | 4-METHYLPENT-2-ENOIC ACID |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |