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75746

Sigma-Aldrich

Sodium dodecyl sulfate

≥99.0% (GC), dust-free pellets

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Synonym(s):
Dodecyl sodium sulfate, Dodecyl sulfate sodium salt, Lauryl sulfate sodium salt, SDS, Sodium lauryl sulfate
Linear Formula:
CH3(CH2)11OSO3Na
CAS Number:
Molecular Weight:
288.38
Beilstein:
3599286
EC Number:
MDL number:
eCl@ss:
39093306
PubChem Substance ID:
NACRES:
NA.25

description

anionic

Assay

≥99.0% (GC)

form

rod

mol wt

average mol wt 18,000

aggregation number

62

loss

≤5% loss on drying

CMC

7-10 (lit.)

mp

204 - 207  °C (399 - 405 °F)
204-207 °C (lit.)

transition temp

cloud point >100 °C(lit.)

solubility

H2O: soluble 0.29 gm in 10ml, clear, colorless
H2O: 0.1 M at 20 °C, clear, colorless
130 g/L at 20 °C (68 °F)

density

1 g/cm3

anion traces

chloride (Cl-): ≤200 mg/kg

cation traces

Ca: ≤25 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤10 mg/kg
K: ≤200 mg/kg
Mg: ≤20 mg/kg
Mn: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

HLB

40(lit.)

SMILES string

[Na+].CCCCCCCCCCCCOS([O-])(=O)=O

InChI

1S/C12H26O4S.Na/c1-2-3-4-5-6-7-8-9-10-11-12-16-17(13,14)15;/h2-12H2,1H3,(H,13,14,15);/q;+1/p-1

InChI key

DBMJMQXJHONAFJ-UHFFFAOYSA-M

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This Item
L5750L6026436143
Sodium dodecyl sulfate ≥99.0% (GC), dust-free pellets

Sigma-Aldrich

75746

Sodium dodecyl sulfate

-
Sodium dodecyl sulfate 92.5-100.5% based on total alkyl sulfate content basis

Sigma-Aldrich

L5750

Sodium dodecyl sulfate

-
Sodium dodecyl sulfate BioXtra, ≥99.0% (GC)

Sigma-Aldrich

L6026

Sodium dodecyl sulfate

Premium Grade
Sodium dodecyl sulfate ACS reagent, ≥99.0%

Sigma-Aldrich

436143

Sodium dodecyl sulfate

Essential Grade
assay

≥99.0% (GC)

assay

92.5-100.5% based on total alkyl sulfate content basis

assay

≥99.0% (GC)

assay

≥99.0%

form

rod

form

-

form

powder

form

solid

mol wt

average mol wt 18,000

mol wt

288.38 g/mol

mol wt

micellar avg mol wt 18,000

mol wt

288.38 g/mol

aggregation number

62

aggregation number

62

aggregation number

62

aggregation number

-

CMC

7-10 (lit.)

CMC

7-10 mM (20-25°C)

CMC

7-10 mM (20-25°C)

CMC

-

General description

Sodium dodecyl sulfate (SDS) is an organic sodium salt used as both a detergent and a protein denaturant in biochemical research. Its unique structure includes a long-chain aliphatic group with a negatively charged sulfate, making it an effective agent for denaturing proteins. This property is especially valuable in electrophoresis, a technique used to separate and analyze macromolecules like proteins. SDS, with its negative charge, interacts with proteins and lipids to create micellar structures, aiding in solubilizing and stabilizing these biomolecules.

Application

Sodium dodecyl sulfate (SDS) has been used:
  • as a negatively charged surfactant to study its effects on filtration flux and membrane fouling during the microfiltration of the surfactant-stabilized oil emulsion
  • as a component of plant extraction buffer, and transferring buffer for western blot
  • as a component of 5× Laemmli sample buffer (5× LB) and 10× SDS running buffer for sodium dodecyl-sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and immunoblot

Anionic detergent

Biochem/physiol Actions

Sodium dodecyl sulfate (SDS) effectively binds to the positively charged and the hydrophobic residues of proteins via sulfate groups and alkyl chains. It functions as a vital detergent in the domain of structural biology and protein folding/unfolding studies. SDS can stimulate the creation of α-helices in a protein structure. It has the ability to promote cooperative unfolding in several proteins including bovine serum albumin (BSA), β-lactoglobulin, α-lactalbumin, and hen egg-white lysozyme structures at elevated concentrations. 

Features and Benefits

  • Tested to confirm low levels of heavy metal contamination, ensuring suitability for various applications
  • Tested for trace levels of Anions and Cations
  • High-purity product ideal for biochemical research purposes

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

338.0 °F

Flash Point(C)

170 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Customers Also Viewed

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D Wessel et al.
Analytical biochemistry, 138(1), 141-143 (1984-04-01)
A rapid method based on a defined methanol-chloroform-water mixture for the quantitative precipitation of soluble as well as hydrophobic proteins from dilute solutions (e.g., column chromatography effluents) has been developed. The effectiveness of this method is not affected by the
J Kamerbeek et al.
Journal of clinical microbiology, 35(4), 907-914 (1997-04-01)
Widespread use of DNA restriction fragment length polymorphism (RFLP) to differentiate strains of Mycobacterium tuberculosis to monitor the transmission of tuberculosis has been hampered by the need to culture this slow-growing organism and by the level of technical sophistication needed
K Fujimoto
Journal of cell science, 108 ( Pt 11), 3443-3449 (1995-11-01)
We propose a new electron microscopic method, the sodium dodecylsulphate (SDS)-digested freeze-fracture replica labeling technique, to study the two-dimensional distribution of integral membrane proteins in cellular membranes. Unfixed tissue slices were frozen with liquid helium, freeze-fractured, and replicated in a
The gross conformation of protein-sodium dodecyl sulfate complexes.
J A Reynolds et al.
The Journal of biological chemistry, 245(19), 5161-5165 (1970-10-10)
Kazuya Ishikawa et al.
Nature communications, 5, 5430-5430 (2014-11-13)
Pathogen effector proteins are delivered to host cells to suppress plant immunity. However, the mechanisms by which effector proteins function are largely unknown. Here we show that expression of XopP(Xoo), an effector of rice pathogen Xanthomonas oryzae pv. oryzae, in

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