| Name | CIS-2-PENTENE |
| Synonyms | cis-Pentene cis-β-Amylene CIS-2-PENTENE cis-pent-2-ene (Z)-pent-2-ene 2-PENTENE(CIS) cis-β-n-Amylene cis-beta-n-amylene |
| CAS | 627-20-3 |
| EINECS | 210-988-7 |
| Molecular Formula | C5H10 |
| Molar Mass | 70.13 |
| Density | 0.65 g/mL at 25 °C (lit.) |
| Melting Point | -180 °C (lit.) |
| Boling Point | 37-38 °C (lit.) |
| Flash Point | −1 °F |
| Water Solubility | 203 mg/kg at 25 °C (shake flask-GC, McAuliffe, 1966) |
| Vapor Presure | 8.17 psi ( 20 °C) |
| Appearance | Form Liquid, color Clear colorless |
| pKa | >14 (Schwarzenbach et al., 1993) |
| Storage Condition | Flammables area |
| Stability | Stable. Highly flammable - note low flash point. Incompatible with oxidizing agents. |
| Refractive Index | n20/D 1.382(lit.) |
| Physical and Chemical Properties | EPA Chemical Information cis-2-Pentene (627-20-3) |
| Risk Codes | R11 - Highly Flammable R36/37/38 - Irritating to eyes, respiratory system and skin. R65 - Harmful: May cause lung damage if swallowed |
| Safety Description | S9 - Keep container in a well-ventilated place. S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S29 - Do not empty into drains. S33 - Take precautionary measures against static discharges. S36 - Wear suitable protective clothing. S62 - If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label. |
| UN IDs | UN 3295 3/PG 1 |
| WGK Germany | 3 |
| HS Code | 29012990 |
| Hazard Class | 3.1 |
| Packing Group | I |
| Raw Materials | (1-chloroethyl)cyclopropane 4-Hexenal 2-PENTYNE TRANS-2-PENTENE ETHYLCYCLOPROPANE TRANS-1,3-PENTADIENE 1-PENTYNE |
| Downstream Products | 4-Methylenenonane TRANS-1,3-PENTADIENE CIS-1,3-PENTADIENE |
| toxic substance data | 627-20-3(Hazardous Substances Data) |
| Solubility | Soluble in alcohol, benzene, and ether (Weast, 1986) |
| Specific gravity | 0.650 |
| BRN | 1718794 |
| Henry's Law Constant | 0.225 at 25°C (approximate - calculated from experimentally determined water solubility and vapor pressure values) |