• USA Home
  • 71726 - Sodium dodecyl sulfate

71726 Sigma-Aldrich

Sodium dodecyl sulfate

for ion pair chromatography, ≥99.0%

Synonym: Dodecyl sodium sulfate, Dodecyl sulfate sodium salt, Lauryl sulfate sodium salt, SDS, Sodium lauryl sulfate

  • CAS Number 151-21-3

  • Linear Formula CH3(CH2)11OSO3Na

  • Molecular Weight 288.38

  •  Beilstein Registry Number 3599286

  •  EC Number 205-788-1

  •  MDL number MFCD00036175

  •  PubChem Substance ID 24886284

  •  eCl@ss 39093306



Related Categories Alkyl Sulfates, Analytical Reagents, Analytical/Chromatography, Anionic Detergents, Antigen-Vaccine Preparation,
grade   for ion pair chromatography
description   anionic
assay   ≥99.0% (GC)
mol wt   mol wt 288.38  g/mol
description   62
mp   204-207 °C(lit.)
solubility   water: soluble
λ   10 % in H2O
UV absorption   λ: 210 nm Amax: 0.1
  λ: 220 nm Amax: 0.06
  λ: 230 nm Amax: 0.04
  λ: 260 nm Amax: 0.02
  λ: 500 nm Amax: 0.02
HLB   40
suitability   corresponds to standard for RP gradient test
  corresponds to standard for filter test



Anionic detergent

SDS may be used:
• in peptide mapping and protein analysis by gel electrophoresis.
• to utilize in designing formulations and its effect on adsorption and micellization parameters.
• in measuring protein-SDS complexes and SDS solution in guanidine hydrochloride using gel chromatography.
• in seperating protein subunits dissociated with SDS using Hydroxylapatite chromatography.

Other Notes

Same product — same quality — now Sigma-Aldrich brand

General description

Sodium dodecyl sulfate (SDS) is a detergent suitable to denature proteins. It is a long-chain aliphatic group which has negatively charged sulfate, hence making it amphipathic detergent in nature.

Price and Availability

Suggested Laboratory Gloves

Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.

Safety & Documentation

Safety Information

Signal word 
Precautionary statements 
UN1325 - class 4.1 - PG 3 - Flammable solids, organic, n.o.s., HI: all
WGK Germany 
Flash Point(F) 
338 °F
Flash Point(C) 
170 °C


Certificate of Analysis

Protocols & Articles

Related Content

Supelco HPLC Calculator for Isocratic or Gradient Method Transfer

Calculates conditions for transfer of an isocratic or gradient method from one HPLC column to another. Allows method scaling from microbore through preparative column range. Calculates time and solve...
Keywords: High performance liquid chromatography

Peer-Reviewed Papers


Set your institution to view full text papers.
Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?