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DIMETHYL SULPHOXIDE GC Reference Standard

Traceable to USP reference Standard

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COAs

Packings

100 ml (00100)

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Article No. GS070 Grade
Purity CAS No. 67-68-5
Molecular Formula CH3SO.CH3 Molecular Weight 78.13
H.S. Code 2930.9099 Shelf Life 36 Months

Physical Properties

Physical state at 20 °C Liquid Colour Clear Colorless
Odour Garlic-like odor Melting point/ Freezing point [°C] 16 - 19 °C
Auto-ignition temperature [°C] 215°C Flash point [°C] 87 °C
Boiling point [°C] 189 °C Evaporation rate 4.3
Vapour pressure [20°C] 0.55 hPa Vapour density 2.7
Density [g/cm3] 1.1 g/cm3 Solubility in water Completely miscible
Partition coefficient Log Pow octanol / water at 20°C -2.03 Explosion limits - upper [%] 42%
Explosion limits -lower [%] 3.50%

Specifications

Appearance Clear colourless liquid Purity (by GC) Min 99.9%
Potency Reported on COA Identification (by IR) Conforms to structure
Identification (by 1H NMR) Conforms to structure Identification (by GCMS) Passes test
Colour scale Max 10 APHA Residue on evaporation Max 0.002%
Water (by KF) Max 0.1%
Revision Date: 23-Dec-2025

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