Description

n-Dodecyl-N,n-Dimethyl-3-Ammonio-1-Propanesulfonate is a high-purity zwitterionic surfactant, also known as a sulfobetaine. This compound is valued for its excellent stability across a wide pH range and compatibility with both cationic and anionic systems. It is essential for formulators and researchers in the life sciences, personal care, and specialty chemical industries who require a mild, highly soluble detergent with strong protein solubilization capabilities. Its unique structure provides superior performance in demanding applications where other surfactants may fail.

Application

• Biochemical Research & Protein Chemistry: As a key component in zwittergent detergents for membrane protein solubilization and purification while maintaining native structure and function.
• Pharmaceutical Formulations: Used as a solubilizing and stabilizing agent in injectable and topical drug delivery systems.
• Personal Care & Cosmetics: Acts as a mild surfactant and viscosity modifier in shampoos, body washes, and other rinse-off products, offering enhanced skin compatibility.
• Analytical Chemistry: Employed in capillary electrophoresis and chromatography as a buffer additive or micellar agent to improve separation efficiency.
• Industrial & Institutional Cleaning: Serves as a high-foaming, low-irritation surfactant in specialty cleaners and disinfectants.
• Polymer & Material Science: Utilized as an emulsifier in emulsion polymerization and a surface modifier to enhance wettability and dispersion.

Basic Information

Product Name	n-Dodecyl-N,n-Dimethyl-3-Ammonio-1-Propanesulfonate
CAS No.	14933-08-5
Molecular Formula	C₁₇H₃₇NO₃S
Molecular Weight	335.55 g/mol
Synonyms	Dodecyldimethyl(3-sulfopropyl)ammonium hydroxide, inner salt; 3-(Dodecyldimethylammonio)propanesulfonate; Sulfobetaine 3-12; Zwittergent 3-12; SB-12; N-Dodecyl-N,N-dimethyl-3-ammonio-1-propanesulfonate; Lauryl sulfobetaine; Dodecyldimethylammoniopropanesulfonate
EINECS	239-002-2

Quality Control

Our n-Dodecyl-N,n-Dimethyl-3-Ammonio-1-Propanesulfonate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and industrial applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0 %
Water Content (KF)	≤ 2.0 %
Residue on Ignition	≤ 0.1 %
pH (1% Solution)	6.0 - 8.0

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.