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Dimethyl Sulfoxide

Pharmaceutical Secondary Standard; Certified Reference Material

Sulfoxide, DMSO
CAS Number:
EC Number:

Quality Level


certified reference material
pharmaceutical secondary standard


current certificate can be downloaded


HPLC: suitable
gas chromatography (GC): suitable


pharmaceutical (small molecule)



pharmacopeia traceability

traceable to PhEur D2050000
traceable to USP 1211006

storage temp.




InChI key


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General description

Certified pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to pharmacopeia primary standards.
Dimethyl Sulfoxide (DMSO) is an amphipathic molecule and contains both highly polar and apolar groups, making it an efficient solvent as it can dissolve in both aqueous and organic solvents. It has its therapeutic use in the treatment of a variety of human conditions such as brain edema, amyloidosis, interstitial cystitis, and schizophrenia. It is a commonly used solvent for hydrophobic pharmaceutical agents, exhibiting effective hydroxyl radical scavenging ability. Commercially it is produced by oxidation of dimethylsulfide (DMS) with dinitrogen tetroxide. It is a component of a wide variety of foodstuffs and beverages.


These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.

Analysis Note

These secondary standards offer multi-traceability to the USP, EP (PhEur) and BP primary standards, where they are available.

Other Notes

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.


To see an example of a Certificate of Analysis for this material enter LRAA0526 in the slot below. This is an example certificate only and may not be the lot that you receive.

Storage Class Code

10 - Combustible liquids



Flash Point(F)

188.6 °F - closed cup

Flash Point(C)

87 °C - closed cup

Certificate of Analysis

Certificate of Origin

Farhana Musarrat et al.
Journal of medical virology, 92(10), 2087-2095 (2020-05-07)
Severe acute respiratory syndrome coronavirus-2 (SARS CoV-2) is the causative agent of the coronavirus disease-2019 (COVID-19) pandemic. Coronaviruses enter cells via fusion of the viral envelope with the plasma membrane and/or via fusion of the viral envelope with endosomal membranes
Solvation and ion pairing of alkali-metal alkoxides in dimethyl sulfoxide. Conductometric studies
Exner JH and Steiner EC
Journal of the American Chemical Society, 96(6), 1782-1787 (1974)
Room temperature ionic liquid as matrix medium for the determination of residual solvents in pharmaceuticals by static headspace gas chromatography
Liu F and Jiang Y
Journal of Chromatography A, 1167(1), 116-119 (2007)
Application of nuclear magnetic resonance spectroscopy for quantitative analysis of miconazole, metronidazole and sulfamethoxazole in pharmaceutical and urine samples
Salem AA, et al.
Journal of Pharmaceutical and Biomedical Analysis, 41(2), 654-661 (2006)
A rapid permethylation of glycolipid, and polysaccharide catalyzed by methylsulfinyl carbanion in dimethyl sulfoxide
Journal of Biochemistry, 55(2), 205-208 (1964)


GC Analysis of Class 3 Residual Solvents on OVI-G43

Butyl methyl ether; Acetic acid; 2-Butanone; Ethyl acetate; Tetrahydrofuran; 1-Butanol; Isopropyl acetate; Heptane; Propyl acetate; 3-Methylbutanol; 4-Methyl-2-pentanone; Isobutyl acetate; Butyl acetate; Dimethyl sulfoxide; Anisole; Cumene


GC Analysis of Class 3 Residual Solvents on SUPELCOWAX® 10

Protocol for GC Analysis of Class 3 Residual Solvents on SUPELCOWAX® 10

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