66050

2-Methyl-2-butene

analytical standard

• Synonym(s): β-Isoamylene, Amylene
• Linear Formula: CH₃CH=C(CH₃)₂
• CAS Number: 513-35-9
• Molecular Weight: 70.13
• Beilstein/REAXYS Number: 1361353
• EC Number: 208-156-3
• MDL number: MFCD00009276
• UNSPSC Code: 41116107
• PubChem Substance ID: 329760158
• NACRES: NA.24

Properties

• grade: analytical standard
• Quality Level: 100
• vapor density: 2.4 (vs air)
• assay: ≥99.0% (GC)
• shelf life: limited shelf life, expiry date on the label
• expl. lim.: 8.7 %
• technique(s): HPLC: suitable; gas chromatography (GC): suitable
• refractive index: n20/D 1.385 (lit.); n20/D 1.387
• bp: 35-38 °C (lit.)
• mp: −134 °C (lit.)
• density: 0.662 g/mL at 25 °C (lit.)
• application(s): environmental; petroleum
• format: neat
• SMILES string: C\C=C(\C)C
• InChI: 1S/C5H10/c1-4-5(2)3/h4H,1-3H3
• InChI key: BKOOMYPCSUNDGP-UHFFFAOYSA-N

Description

General description

2-Methyl-2-butene is a trisubstituted olefin which is mostly used as a precursor for peroxyacetyl nitrate. It can be prepared by the acid-catalyzed dehydration of 3-methyl-2-butanol. It has 3 alkyl groups on the double bond.

Application

It has been used in isolation and identification of carbonyl compounds reacting with ozone using off-line sampling method followed by liquid chromatography.

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Safety Information

• pictograms: GHS02,GHS08,GHS07,GHS09
• signalword: Danger
• hcodes: H224,H302,H304,H336,H341,H411
• pcodes: P210 - P233 - P273 - P301 + P310 - P331 - P403 + P233
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Chronic 2 - Asp. Tox. 1 - Flam. Liq. 1 - Muta. 2 - STOT SE 3
• target_organs: Central nervous system
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 3
• flash_point_f: -4.0 °F
• flash_point_c: -20 °C
• ppe: Eyeshields, Faceshields, Gloves