Sodium dodecyl sulphate (SDS) 99, powder_white

Supplier: MP Biomedicals
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Total Ratings: 0
Avg. Ratings: 0.0 out of 5

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Synonyms: Dodecyl sulphate sodium salt, Sodium dodecyl sulfate, Dodecyl sulphuric acid sodium salt, Lauryl sulphate sodium salt, Sodium lauryl sulphate

0219483125 0219483180 0219483183 0219483190 0219483191
ICNA0219483125EA 52.6 GBP
ICNA0219483125 ICNA0219483180 ICNA0219483183 ICNA0219483190 ICNA0219483191
Sodium dodecyl sulphate (SDS) 99, powder_white
Sodium dodecyl sulphate (SDS)

SDS is an detergent typically used to solubilize and denature proteins for electrophoresis. SDS has also been used in large-scale phenol extraction of RNA to promote the dissociation of protein from nucleic acids when extracting from biological material. SDS is used in Protein Electrophoresis & Blotting.


SDS is an anionic detergent and wetting agent that is effective in both acid and alkaline solutions. Most proteins bind SDS in a ratio of 1.4 grams SDS to 1 gram protein. The charges intrinsic to the protein become insignificant compared to the overall negative charge provided by the bound SDS. The charge to mass ratio is essentially the same for each protein and will migrate in the gel based only on protein size. The salt is of an organosulfate consisting of a 12-carbon tail attached to a sulfate group, giving the material the amphiphilic properties required of a detergent.

Formula: CH₃(CH₂)₁₁OSO₃Na
MW: 288.38 g/mol
Melting Pt: 180…210 °C
Density: 1.1 (20 °C)
Flash Pt: 199 °C
Storage Temperature: Ambient
MDL Number: MFCD00036175
CAS Number: 151-21-3
EINECS: 205-788-1
UN: 2296
ADR: 4.1 II
Merck Index: 14,08636
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Specification Test Results

Identity Test Passes
Purity ~99%
FTIR Conforms to Standard
Melting Point 182 - 210 °C
OD260 nm (1% aq soln) <0,1
OD280 nm (1% aq soln) <0,1
pH (1% aq soln) 6 - 7


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