Introduction：Basic information about CAS 590-18-1|cis-2-butene, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
| Common Name | cis-2-butene |
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| CAS Number | 590-18-1 | Molecular Weight | 56.10630 |
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| Density | 0.636 g/cm3 | Boiling Point | 3.7ºC at 760 mmHg |
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| Molecular Formula | C4H8 | Melting Point | -139ºC(lit.) |
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| MSDS | / | Flash Point | -12ºC |
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Names
| Name | cis-but-2-ene |
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| Synonym | More Synonyms |
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Chemical & Physical Properties
| Density | 0.636 g/cm3 |
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| Boiling Point | 3.7ºC at 760 mmHg |
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| Melting Point | -139ºC(lit.) |
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| Molecular Formula | C4H8 |
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| Molecular Weight | 56.10630 |
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| Flash Point | -12ºC |
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| Exact Mass | 56.06260 |
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| LogP | 1.58240 |
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| Vapour density | 2 (vs air) |
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| Vapour Pressure | 1414 mm Hg ( 21 °C) |
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| Index of Refraction | 1.384 |
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| InChIKey | IAQRGUVFOMOMEM-ARJAWSKDSA-N |
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| SMILES | CC=CC |
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| Stability | Stable, but prone to polymerization in the presence of suitable catalysts. Extremely flammable. Readily forms explosive mixtures with air. Can lead to flash fires. Incompatible with strong oxidizing agents, halogens, halogen acids, magnesium perchlorate. |
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Safety Information
| Hazard Codes | F+ |
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| Risk Phrases | R12 |
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| Safety Phrases | S9-S16-S33 |
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| RIDADR | UN 1012 |
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| WGK Germany | 3 |
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| Hazard Class | 2.1 |
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Synonyms
| High-boiling butene-2 |
| cis-Butene |
| MFCD00009294 |
| cis-1,2-Dimethylethylene |
| cis-2-Butene |
| (Z)-but-2-ene |
| EINECS 209-673-7 |
