2-Methyl-2-butene #CAS513-35-9
CAS Number:513-35-9
Chemical Formula:C5H10
Synonyms:
METHYLBUTENES
2-METHYL-2-BUTENE
alpha,eta-amylene
Appearance:Colorless Liquid
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
2-Methyl-2-butene #CAS513-35-9
2-Methyl-2-butene (also named as Amylene) is an alkene hydrocarbon with the molecular formula C5H10. It is a colorless to pale yellow clear liquid. It can be used as a free radical scavenger in trichloromethane and dichloromethane. It was used for the alkylation of 3-methylthiophene over a zeolitic catalyst. It was also used as a precursor of peroxyacetyl nitrate for calibration purpose.
2-Methyl-2-butene is a colorless volatile liquid with unpleasant odour (detection limit ca. 2 ppt) . soluble in alcohol, ether, benzene, insoluble in water. It is used in organic synthesis, hydrogenation, halogenation, alkylation, condensation reactions.
Application of 2-Methyl-2-butene
2-Methyl-2-butene is used to prepare 3-Brom-2.3-dimethyl-1.1-dicyan-butan in the presence of 2,2'-azobis-(2,4-dimethyl-4-methoxyvaleronitrile) as a catalyst. It may be employed as precursor for peroxyacetyl nitrate for the calibration purposes.
| 2-Methyl-2-butene Chemical Properties |
| Melting point | -134 °C (lit.) |
| Boiling point | 35-38 °C (lit.) |
| density | 0.662 g/mL at 25 °C (lit.) |
| vapor density | 2.4 (vs air) |
| vapor pressure | 25.7 psi ( 55 °C) |
| refractive index | n |
| RTECS | EM7580000 |
| Fp | −4 °F |
| storage temp. | 2-8°C |
| solubility | Chloroform, Methanol (Slightly) |
| form | Liquid |
| color | Colorless |
| explosive limit | 8.7% |
| Water Solubility | Miscible with alcohol, benzene, ligroin, ethylene oxide and ether. Immiscible with water. |
| Specific Heat Capacity | Cp(liquid): 2.18 J/(g·K), at 25℃ |
| Merck | 14,607 |
| BRN | 1361353 |
| Henry's Law Constant | 5.7×10-5 mol/(m3Pa) at 25℃, Brockbank (2013) |
| Dielectric constant | 2.1（20℃） |
| Stability: | Volatile |
| InChI | 1S/C5H10/c1-4-5(2)3/h4H,1-3H3 |
| InChIKey | BKOOMYPCSUNDGP-UHFFFAOYSA-N |
| SMILES | C\C=C(\C)C |
| LogP | 2.67 |
| CAS DataBase Reference | 513-35-9(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Butene, 2-methyl-(513-35-9) |
| EPA Substance Registry System | 2-Methyl-2-butene (513-35-9) |
| Safety Information |
| Hazard Codes | F,Xn,N,F+ |
| Risk Statements | 11-22-65-51/53-12-36/37/38-19-68-67-38-52/53-40-36/37 |
| Safety Statements | 45-9-61-33-16-36/37/39-26-62-36/37 |
| RIDADR | UN 2460 |
| WGK Germany | 3 |
| TSCA | TSCA listed |
| HazardClass | 3 |
| PackingGroup | II |
| HS Code | 29012900 |
| Storage Class | 3 - Flammable liquids |
| Hazard Classifications | Acute Tox. 4 Oral Aquatic Chronic 2 Asp. Tox. 1 Flam. Liq. 1 Muta. 2 STOT SE 3 |
| Hazardous Substances Data | 513-35-9(Hazardous Substances Data) |
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