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Sodium dodecyl sulfate

Name: Sodium dodecyl sulfate
Brand: SIAL
Price: 104.97 EUR
Availability: InStock

BioReagent, Molecular Biology, ≥98.5% (GC), free-flowing, Redi-Dri^™

Synonym(s):

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

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Size/SKU	Availability	Price
100 g	Estimated to ship on03 November 2026fromDSV SOLUTIONS AFRICA	€107.11 €104.97
500 g	Estimated to ship on03 November 2026fromDSV SOLUTIONS AFRICA	€364.51 €357.22
1 kg	Estimated to ship on02 February 2027fromDSV SOLUTIONS AFRICA	€537.34 €526.59
2.5 kg	Estimated to ship on08 January 2027fromDSV SOLUTIONS AFRICA	€1,061.25 €1,040.02

About This Item

Linear Formula:

CH₃(CH₂)₁₁OSO₃Na

CAS Number:

151-21-3

Molecular Weight:

288.38

NACRES:

NA.25

UNSPSC Code:

12161900

Beilstein/REAXYS Number:

3599286

MDL number:

MFCD00036175

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Properties

grade

Molecular Biology

Quality Segment

100

description

anionic

product line

BioReagent, Redi-Dri^™

assay

≥98.5% (GC)

quality

free-flowing

mol wt

micellar 18,000

aggregation number

technique(s)

electrophoresis: suitable

CMC

7-10 mM (20-25°C)

mp

204-207 °C (lit.)

transition temp

cloud point >100 °C

solubility

water: soluble

anion traces

chloride (Cl^-): ≤500 ppm, phosphate (PO₄^3-): ≤10 ppm

cation traces

heavy metals (as Pb): ≤10 ppm

absorption

≤0.1 at 260 at 3%, ≤0.1 at 280 at 3%

HLB

suitability

suitable for electrophoresis

foreign activity

DNase, RNase, none detected

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

Description

General description

Sodium dodecyl sulfate (SDS) is an amphipathic detergent commonly used for denaturing proteins. SDS has a long-chain aliphatic group, with negatively charged sulfate groups that coat the surface of proteins, causing them to lose their quaternary structure.

Application

Anionic detergent

Sodium dodecyl sulfate has been used:

in chromatin immunoprecipitation
in SDS-polyacrylamide gel electrophoresis (SDS-PAGE)
as a component of radioimmunoprecipitation assay buffer for immunoblotting

Analysis Note

Tested for use in denatured polyacrylamide gel electrophoresis.

Other Notes

For additional information on our range of Biochemicals, please complete this form.

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

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Show Differences

1 of 1

This Item	428023	75746	71729
Sigma-Aldrich RDD040 Sodium dodecyl sulfate	Millipore 428023 Sodium dodecyl sulfate	Sigma-Aldrich 75746 Sodium dodecyl sulfate	Sigma-Aldrich 71729 Sodium dodecyl sulfate
description BioReagent, Molecular Biology, ≥98.5% (GC), free-flowing, Redi-Dri^™	description Molecular Biology Grade	description ≥99.0% (GC), dust-free pellets	description ≥98.0% (GC)
HLB 40	HLB -	HLB 40(lit.)	HLB 40
grade Molecular Biology	grade Molecular Biology	grade -	grade -
anion traces chloride (Cl^-): ≤500 ppm, phosphate (PO₄^3-): ≤10 ppm	anion traces -	anion traces chloride (Cl^-): ≤200 mg/kg	anion traces chloride (Cl^-): ≤200 mg/kg
description anionic	description Merck USA index - 14, 8636	description anionic	description anionic
Quality Level 100	Quality Level 100	Quality Level 200	Quality Level 200
absorption ≤0.1 at 260 at 3%, ≤0.1 at 280 at 3%	absorption -	absorption -	absorption -

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Pictograms

GHS02,GHS05,GHS07

Signal Word

Danger

Hazard Codes

H228,H302 + H332,H315,H318,H335,H412

Precautionary Statements

P210 - P273 - P280 - P301 + P312 - P304 + P340 + P312 - P305 + P351 + P338

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Flam. Sol. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class

4.1B - Flammable solid hazardous materials

WGK

WGK 2

Flash Point (°F)

338.0 °F

Flash Point (°C)

170 °C

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Certificates of Analysis (COA)

Lot/Batch Number

0000428591

0000533988

SLCH6627

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