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D1435

Sigma-Aldrich

Dimethyl sulfoxide

meets EP testing specifications, meets USP testing specifications

Synonym(s):
DMSO
Linear Formula:
(CH3)2SO
CAS Number:
Molecular Weight:
78.13
Beilstein:
506008
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.71

Quality Level

Agency

meets EP testing specifications
meets USP testing specifications

vapor density

2.7 (vs air)

vapor pressure

0.42 mmHg ( 20 °C)

assay

≥99.5%

form

liquid

autoignition temp.

573 °F

expl. lim.

42 %, 63 °F

technique(s)

cryopreservation: suitable

impurities

≤0.1% water (Karl Fischer, USP)
≤0.2% water (Karl Fischer, EP)

color

colorless

refractive index

n20/D 1.478-1.479
n20/D 1.479 (lit.)

bp

189 °C (lit.)

mp

16-19 °C (lit.)

solubility

H2O: miscible (completely)

density

1.100-1.104 g/mL at 25 °C (relative density (EP))
1.10 g/mL (lit.)

UV absorption

λ: 285 nm Amax: ≤0.20
λ: 295 nm Amax: ≤0.20

SMILES string

CS(C)=O

InChI

1S/C2H6OS/c1-4(2)3/h1-2H3

InChI key

IAZDPXIOMUYVGZ-UHFFFAOYSA-N

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Application

Dimethyl sulfoxide has been used:
  • for the dissolution of tetramethylrhodamine dye, which is used as fluorophore for fluorescence in- situ hybridization (FISH) experiments
  • as a control in indirect immunofluorescent assay (IFA) of swine testicular (ST) cells
  • for the suspension and separation of buccal cells
  • a polar aprotic solvent used in polymerase chain reactions (PCR) and as a cryoprotectant vitrification agent for the preservation of cells, tissues and organs.

Packaging

1 L in glass bottle
500 mL in glass bottle

Biochem/physiol Actions

Dimethyl sulfoxide (DMSO) is a low molecular weight, less hydrophilic and a freely permeable cryoprotectant. It is a polar aprotic solvent used in polymerase chain reactions (PCR) and as a cryoprotectant and vitrification agent for the preservation of cells, tissues and organs.

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.

Other Notes

For information on dimethyl sulfoxide miscibility, please visit the following link:
Dimethyl Sulfoxide Miscibility/Immiscibility Table

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

188.6 °F - closed cup

Flash Point(C)

87 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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Articles

Hepatocyte Culture

Hepatocytes are epithelial cells found in the liver. They perform important functions, such as helping to detoxify blood, and to synthesize transport proteins, such as lipoprotein, albumin and transferrin. Primary and secondary cultures of hepatocytes are useful for studying the mechanisms of liver regeneration and differentiation.

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