cis-4-Methyl-2-pentene
- CAS NO.：691-38-3
- Empirical Formula: C6H12
- Molecular Weight: 84.16
- MDL number: MFCD00009293
- EINECS: 211-721-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-27 23:48:28
What is cis-4-Methyl-2-pentene?
Chemical properties
clear yellow liquid
Purification Methods
Dry the cis-pentene with CaH2, and distil it. [Beilstein 1 IV 841.]
Properties of cis-4-Methyl-2-pentene
| Melting point: | -134.85°C |
| Boiling point: | 57-58 °C(lit.) |
| Density | 0.686 g/mL at 20 °C(lit.) |
| vapor pressure | 399 mm Hg ( 37.7 °C) |
| refractive index | n |
| FEMA | 4650 | 4-METHYL-CIS-2-PENTENE |
| Flash point: | −28 °F |
| storage temp. | 0-10°C |
| form | clear liquid |
| color | Colorless to Almost colorless |
| Odor | at 1.00 % in propylene glycol. fruity green |
| JECFA Number | 2194 |
| CAS DataBase Reference | 691-38-3(CAS DataBase Reference) |
| EPA Substance Registry System | cis-4-Methyl-2-pentene (691-38-3) |
Safety information for cis-4-Methyl-2-pentene
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Health Hazard GHS08 |
| GHS Hazard Statements |
H225:Flammable liquids H304:Aspiration hazard |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P370+P378:In case of fire: Use … for extinction. P405:Store locked up. P403+P235:Store in a well-ventilated place. Keep cool. P501:Dispose of contents/container to..… |
Computed Descriptors for cis-4-Methyl-2-pentene
| InChIKey | LGAQJENWWYGFSN-PLNGDYQASA-N |
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