220159

2,3-Dimethyl-2-butene

≥99%

• Synonym(s): Tetramethylethylene
• Linear Formula: (CH₃)₂C=C(CH₃)₂
• CAS Number: 563-79-1
• Molecular Weight: 84.16
• Beilstein/REAXYS Number: 1361357
• EC Number: 209-263-8
• MDL number: MFCD00008897
• UNSPSC Code: 12352100
• PubChem Substance ID: 24853167
• NACRES: NA.22

Properties

• vapor pressure: 215 mmHg ( 37.7 °C)
• Quality Level: 100
• assay: ≥99%
• form: liquid
• autoignition temp.: 754 °F
• refractive index: n20/D 1.412 (lit.)
• bp: 73 °C (lit.)
• mp: −75 °C (lit.)
• density: 0.708 g/mL at 25 °C (lit.)
• storage temp.: 2-8°C
• SMILES string: C\C(C)=C(\C)C
• InChI: 1S/C6H12/c1-5(2)6(3)4/h1-4H3
• InChI key: WGLLSSPDPJPLOR-UHFFFAOYSA-N

Description

General description

2,3-Dimethyl-2-butene undergoes ozonolysis in dark to yield hydroxyl radical. Reaction of ozone with 2,3-dimethyl 2-butene (DMB) has been investigated using a flow-tube interfaced to UV photoelectron spectrometer. DMB forms adduct with thianthrene cation radical tetrafluoroborate at 0°C and -15°C.

Application

2,3-Dimethyl-2-butene was employed as substrate in photoinduced molecular transformations involving 2-hydroxy-1,4-naphthoquinones.

Safety Information

• pictograms: GHS02,GHS08
• signalword: Danger
• hcodes: H225,H304
• pcodes: P210 - P301 + P310 + P331
• Hazard Classifications: Asp. Tox. 1 - Flam. Liq. 2
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 3
• flash_point_f: 17.6 °F - closed cup
• flash_point_c: -8 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter