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220159 Aldrich

2,3-Dimethyl-2-butene

≥99%

Synonym: Tetramethylethylene

  • CAS Number 563-79-1

  • Linear Formula (CH3)2C=C(CH3)2

  • Molecular Weight 84.16

  •  Beilstein Registry Number 1361357

  •  EC Number 209-263-8

  •  MDL number MFCD00008897

  •  PubChem Substance ID 24853167

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Properties

Related Categories Acyclic, Alkenes, Building Blocks, Chemical Synthesis, Organic Building Blocks More...
vapor pressure   215 mmHg ( 37.7 °C)
InChI Key   WGLLSSPDPJPLOR-UHFFFAOYSA-N
assay   ≥99%
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

Description

Packaging

25, 100 mL in ampule

Application

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

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.

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN 3295BE 3 / PGII
WGK Germany 
3
Flash Point(F) 
17.6 °F
Flash Point(C) 
-8 °C

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References

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