Sodium dodecyl sulfate for analysis EMPARTA® ACS

Understanding SDS’s structure explains its dual hydrophilic-lipophilic behaviour: 

• Chemical Formula: C₁₂H₂₅NaO₄S 

• Structure: Composed of a 12-carbon (dodecyl) hydrophobic chain attached to a sulfate group, with a sodium counterion 

• Molar Mass: 288.38 g/mol 

• Functional Role: The sulfate head is hydrophilic while the dodecyl tail is hydrophobic, enabling micelle formation in aqueous solutions 

The ionic character and chain length make SDS particularly effective in solubilizing proteins, lipids, and other organic substances. 

This EMPARTA® ACS-grade SDS is carefully manufactured and packaged to maintain stability and ease of handling: 

High-purity Sodium Dodecyl Sulfate is produced through precise synthesis and purification: 

• Sulfation: Dodecanol reacts with chlorosulfonic acid or SO₃ to form dodecyl hydrogen sulfate 

• Neutralization: Converted to SDS using high-purity sodium hydroxide 

• Crystallization: Filtered and cooled to form SDS crystals 

• Recrystallization & Drying: Removes residual impurities and moisture 

• Analytical Validation: Tested for heavy metals, water (Karl Fischer), ignition residue, and UV absorbance 

• Safe Packaging: Sealed in tamper-proof containers under inert conditions 

Lab Chemicals delivers SDS with purity on par with Sigma Aldrich, under GMP and ISO standards. 

SDS is one of the most commonly used surfactants in both routine and advanced research applications: 

1. Biochemical Analysis 

• SDS-PAGE Electrophoresis: Denatures proteins and provides a uniform negative charge for molecular weight analysis 

• Buffer Pairing: Combined with potassium phosphate monobasic for protein separation and pH stability 

• Protein Solubilization: Disrupts membranes and solubilizes hydrophobic proteins 

• Enzyme Inactivation: Inactivates enzymes during sample preparation 

2. Pharmaceutical and Cosmetic Testing 

• Detergent in Stability Studies: Often used in formulations containing Propylene Glycol Meets USP Spec to improve solubility and emulsification. 

• Ingredient in In Vitro Testing: Mimics surfactant exposure in drug dissolution or permeation models 

3. Analytical Chemistry 

• Surface Modification: Used in nanoparticle dispersion and synthesis 

• Sample Clean-up: Enhances extraction and separation of lipophilic contaminants 

4. Industrial Applications 

• Detergents and Cleaning Solutions: Incorporated into lab-grade cleaning agents for glassware and instruments 

• Textile and Paper Processing: Acts as a wetting and dispersing agent (in non-EMPARTA industrial grades) 

When consistency and performance matter, Sodium Dodecyl Sulfate for Analysis EMPARTA® ACS from Lab Chemicals is your trusted choice. CAS No. 151-21-3, SDS is essential for protein research, electrophoresis, and sample purification. Matching the quality of sodium dodecyl sulfate Sigma Aldrich, our EMPARTA® grade offers high purity in convenient formats. For reliable results in protein science, analytical chemistry, and detergent formulation, choose Lab Chemicals as your go-to SDS supplier. 

What is the CAS number of Sodium Dodecyl Sulfate? 

The CAS number for Sodium Dodecyl Sulfate is 151-21-3, also written as 151 21 3, which is the globally recognised identifier for this compound. 

Is Sodium Dodecyl Sulfate soluble in water? 

Yes. This sodium dodecyl sulfate chemical is highly soluble in water and forms micelles easily, enabling its use in electrophoresis buffers and detergent formulations. 

Is this Sodium Dodecyl Sulfate chemical suitable for molecular biology work? 

Yes. This sodium dodecyl sulfate chemical meets ACS standards and is suitable for electrophoresis, protein denaturation, cell lysis, and other molecular biology workflows. 

Can this SDS replace sodium dodecyl sulfate Sigma Aldrich in lab protocols? 

Yes. EMPARTA® ACS-grade SDS provides purity levels similar to sodium dodecyl sulfate Sigma Aldrich, making it suitable for labs seeking equivalent performance. 

How should Sodium Dodecyl Sulfate chemical be stored? 

Store SDS in a tightly closed container, in a cool and dry place, away from moisture. Proper storage maintains the integrity of the sodium dodecyl sulfate chemical for long-term use.