41648 Sigma-Aldrich

Dimethyl sulfoxide

puriss., absolute, over molecular sieve (H2O ≤0.01%), ≥99.5% (GC)

DOWNLOAD MSDS (PDF)

Synonym: DMSO, Methyl sulfoxide

  • CAS Number 67-68-5

  • Linear Formula (CH3)2SO

  • Molecular Weight 78.13

  •  Beilstein Registry Number 506008

  •  EC Number 200-664-3

  •  MDL number MFCD00002089

  •  PubChem Substance ID 24865908

Properties

Related Categories Anhydrous Solvents, Dimethyl Sulfoxide (DMSO), Solvent by Type, Solvent by Application, Solvents More...
vapor density   2.7 (vs air)
vapor pressure   0.42 mmHg ( 20 °C)
grade   absolute
  puriss.
assay   ≥99.5% (GC)
autoignition temp.   573 °F
quality   over molecular sieve (H2O ≤0.01%)
expl. lim.   42 %, 63 °F
refractive index   n20/D 1.479(lit.)
  n20/D 1.479
bp   189 °C(lit.)
mp   16-19 °C(lit.)
density   1.10 g/mL(lit.)

Description

Caution

Supercools easily and remelts slowly at room temperature. Solidified product can be re-liquified by warming to room temperature without detriment to the product.

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