Description

n-Ethyl-n-(3-Sulfopropyl)Aniline Sodium Salt is a high-purity, functionalized aniline derivative widely used as a key intermediate in specialty chemical synthesis. This compound is valued for its sulfonate group, which imparts water solubility and reactivity, making it essential for creating advanced functional materials. It is primarily utilized by manufacturers in the dye and pigment, analytical chemistry, and polymer industries for developing colorants, biochemical reagents, and specialty monomers.

Application

• Dye & Pigment Intermediate: A crucial precursor for synthesizing reactive dyes, acid dyes, and specialty pigments, particularly those requiring enhanced water solubility and fiber affinity.
• Electrochemical Sensor Fabrication: Used in the development of modified electrodes and biosensors due to its electroactive aniline moiety and self-assembly properties.
• Polymer & Conductive Polymer Synthesis: Serves as a functional monomer or dopant in the production of sulfonated polyanilines and other conductive polymers with improved processability.
• Bioconjugation & Reagent Chemistry: Employed in biochemical research for labeling proteins and nucleic acids, leveraging its amine group for conjugation reactions.
• Photographic & Imaging Chemicals: Acts as a component in color coupler systems and other chemical formulations for photographic and imaging applications.
• Corrosion Inhibitor Formulation: Incorporated into specialty formulations designed to protect metal surfaces in aqueous environments.

Basic Information

Product Name	n-Ethyl-n-(3-Sulfopropyl)Aniline Sodium Salt
CAS No.	82611-85-6
Molecular Formula	C11H16NNaO3S
Molecular Weight	265.30 g/mol
Synonyms	N-Ethyl-N-(3-sulfopropyl)aniline sodium salt; 4-(Ethyl(3-sulfopropyl)amino)benzenesulfonic acid sodium salt (incorrect but common misnomer); Aniline, N-ethyl-N-(3-sulfopropyl)-, sodium salt; SPES Na Salt; ESPA; N-Ethyl-N-(3-sulfopropyl)aniline, inner salt; Benzenesulfonic acid, 4-(ethyl(3-sulfopropyl)amino)-, sodium salt; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our n-Ethyl-n-(3-Sulfopropyl)Aniline Sodium Salt is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for critical applications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder or crystals
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.5%
pH (5% solution)	6.0 - 8.0

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