2-Methyl-2-butene

2-Methyl-2-butene^[1][2][3]

Names
Preferred IUPAC name 2-Methylbut-2-ene
Other names β-IsoamyleneTrimethylethylene2-Methyl-2-buteneIsoamylene
Identifiers
CAS Number	513-35-9^Y
3D model (JSmol)	Interactive image
ChemSpider	10113^Y
ECHA InfoCard	100.007.416
PubChemCID	10553
UNII	HR68LQ4T3X^Y
UN number	2460
CompTox Dashboard(EPA)	DTXSID8027165
InChI InChI=1S/C5H10/c1-4-5(2)3/h4H,1-3H3^Y Key: BKOOMYPCSUNDGP-UHFFFAOYSA-N^Y InChI=1/C5H10/c1-4-5(2)3/h4H,1-3H3 Key: BKOOMYPCSUNDGP-UHFFFAOYAE
SMILES C(=C(\C)C)\C
Properties
Chemical formula	C5H10
Molar mass	70.1329 g/mol
Appearance	Colorless liquid
Odor	Sweet
Density	0.662 g/cm^3
Melting point	−134 °C (−209 °F; 139 K)
Boiling point	39 °C (102 °F; 312 K)
Solubility in water	Slightly soluble
Solubility in alcohols, ether	Miscible
Magnetic susceptibility (χ)	−54.14·10^−6 cm^3/mol
Refractive index (nD)	1.385
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	Mildly toxic, flammable
Flash point	< −45 °C (−49 °F; 228 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is ^YN ?) Infobox references

2-Methyl-2-butene, 2m2b, 2-methylbut-2-ene, beta-isoamylene, or trimethylethylene is an alkenehydrocarbon with the molecular formula C₅H₁₀. It is a flammable liquid.

Used as a free radical scavenger in trichloromethane and dichloromethane. It is also used to scavenge hypochlorous acid (HOCl) in the Pinnick oxidation.

John Snow, the English physician, experimented with it in the 1840s as an anesthetic.^[4]

See also

• Pentene

References

1. Dean's Handbook of Organic Chemistry, 2nd Edition.
2. "Safety (MSDS) data for 2-methyl-2-butene". Retrieved 2009-03-24.{{cite web}}: |archive-url= is malformed: timestamp (help)
3. PubChem
4. Caton, Donald (2000). "John Snow's practice of obstetric anesthesia". Anesthesiology: The Journal of the American Society of Anesthesiologists. 92 (1): 247–252. doi:10.1097/00000542-200001000-00037. PMID 10638922.