1.08114 Supelco



Synonym: Butylene oxide, Oxolane, THF, Tetramethylene oxide, Oxolane, Butylene oxide, Tetramethylene oxide

  • CAS Number 109-99-9

  • Empirical Formula (Hill Notation) C4H8O

  • Molecular Weight 72.11

  •  Beilstein/REAXYS Number 102391

  •  MDL number MFCD00005356

  •  EC Index Number 203-726-8



Related Categories Bromhexine Hydrochloride , Chemical Synthesis, Chemicals for the synthesis of candidate COVID-19 treatments, Cobicistat, Darunavir,
Quality Level   200
vapor density   2.5 (vs air)
vapor pressure   114 mmHg ( 15 °C)
  143 mmHg ( 20 °C)
autoignition temp.   610 °F
expl. lim.   1.8-11.8 %
refractive index   n20/D 1.407 (lit.)
pH   7-8 (20 °C, 200 g/L in H2O)
bp   65-67 °C (lit.)
mp   −108 °C (lit.)
transition temp   flash point -21.5 °C
density   0.889 g/mL at 25 °C (lit.)
SMILES string   C1CCOC1
InChI   1S/C4H8O/c1-2-4-5-3-1/h1-4H2
storage conditions   Store at +5°C to +30°C.


General description

EMPLURA® is our low-cost alternative to high-purity qualities. With EMPLURA we offer a range of solvents for a plurality of basic applications in non-regulated industries and for less demanding applications, preparative laboratory work and cleaning purposes. EMPLURA solvents provide adequate specifications with the most important parameters.

Analysis Note

Purity (GC): ≥ 99.0 %
Identity (IR): conforms
Free acid (as CH₃COOH): ≤ 0.002 %
Density (d 20 °C/ 4 °C): 0.887 - 0.889
Peroxide (as H₂O₂): ≤ 0.01 %
Water: ≤ 0.1 %
Stabilized with 2,6-Di-tert-butyl-4-methylphenol (BHT)

Legal Information

EMPLURA is a registered trademark of Merck KGaA, Darmstadt, Germany

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Safety Information

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