Methyl sulfoxide, 99.9%, for spectroscopy | 167850010 | Thermofisher

Description

Specifications Table

Product Name – Methyl sulfoxide, 99.9%, for spectroscopy
Quantity/Pack Size – 100ML, 1LT, 2.5LT
Form – Liquid
Grade – Spectroscopy
Application – UV/Vis, IR, NMR spectroscopy, analytical chemistry

Product Overview

Methyl sulfoxide (DMSO) of 99.9% purity is a high-grade spectroscopic solvent designed for applications demanding minimal interference and maximum transparency across UV, visible, and infrared ranges. This ultra-pure DMSO undergoes rigorous distillation and purification processes to eliminate water, particulate matter, and organic impurities, ensuring consistent baseline stability in spectral analysis. Its low hygroscopicity and high solvating power make it particularly suitable for dissolving a wide range of polar and non-polar compounds without introducing artifacts. The solvent’s exceptional transmission properties in the 200-300 nm UV range and lack of absorption peaks in critical IR regions (particularly 3000-2800 cm⁻¹) allow for accurate sample characterization. Packaged under nitrogen in amber glass bottles to prevent photodegradation and moisture absorption, this spectroscopy-grade DMSO maintains its integrity during storage and handling. The 100mL, 1L, and 2.5L pack sizes provide flexibility for both small-scale experiments and bulk preparations, while the sealed packaging ensures minimal exposure to atmospheric contaminants.

FAQs

1. What is the water content in this 99.9% spectroscopy-grade DMSO?

The water content is strictly controlled to below 0.03% (300 ppm) as verified by Karl Fischer titration, ensuring minimal interference in spectral measurements.

2. Can this DMSO be used for NMR spectroscopy without deuterium?

While this product is not deuterated, its high purity makes it suitable as a secondary solvent in proton NMR when mixed with deuterated solvents like DMSO-d6, provided residual proton signals are accounted for.

3. How does the packaging prevent contamination during storage?

The solvent is packaged in amber glass bottles with PTFE-lined caps and nitrogen purging to block moisture ingress and light-induced degradation, preserving spectral purity.

4. What alternatives exist if I need a lower-grade DMSO for general lab use?

For non-spectroscopic applications, ACS-grade DMSO (99.7% purity) or reagent-grade DMSO (99.5%) are cost-effective alternatives, though they may contain higher water or impurity levels.

5. Is this DMSO compatible with plastic labware like polypropylene tubes?

DMSO can permeate certain plastics; use glass or HDPE containers for long-term storage. For short-term contact, polypropylene is acceptable but may show slight swelling.