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2-Methyl-2-butene

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2-Methyl-2-butene
Names
Preferred IUPAC name 2-Methylbut-2-ene
Other names β-Isoamylene
Trimethylethylene
2-Methyl-2-butene
Isoamylene
Identifiers
CAS Number
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.007.416 Edit this at Wikidata
PubChem CID
UNII
UN number 2460
CompTox Dashboard (EPA)
InChI
  • InChI=1S/C5H10/c1-4-5(2)3/h4H,1-3H3Key: BKOOMYPCSUNDGP-UHFFFAOYSA-N
  • InChI=1/C5H10/c1-4-5(2)3/h4H,1-3H3Key: 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
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 cm/mol
Refractive index (nD) 1.385
Hazards
Occupational safety and health (OHS/OSH):
Main hazards Mildly toxic
Flash point < −45 °C (−49 °F; 228 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). checkY verify (what is  ?) Infobox references
Chemical compound

2-Methyl-2-butene, 2m2b, 2-methylbut-2-ene, beta-isoamylene, or Trimmethylethylene is an alkene hydrocarbon with the molecular formula C5H10.

Used as a free radical scavenger in trichloromethane (chloroform) and dichloromethane (methylene chloride). 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, but stopped using it for unknown reasons.


As a crucial fact, it is a flammable material, an irritant, can result in health hazards and environmental hazards.

See also

References

  1. Dean's Handbook of Organic Chemistry, 2nd Edition.
  2. "Safety (MSDS) data for 2-methyl-2-butene". Archived from the original on 2009-05-14. Retrieved 2009-03-24.
  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.
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