Description

3-Anilinopropanesulphonic Acid is a specialized organic sulfonic acid derivative that serves as a versatile intermediate and functional additive. Its molecular structure, featuring both an aniline and a sulfonic acid group, provides unique properties for synthesis and material modification. This compound is particularly valuable for researchers and manufacturers in the pharmaceutical and specialty chemical sectors seeking to introduce sulfonate functionality or modify solubility profiles.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring sulfonate groups for enhanced bioavailability or specific ionic characteristics.
• Biochemical Research: Used as a reagent or buffer component in biochemical assays and protein studies where its zwitterionic nature can be advantageous.
• Dye and Pigment Synthesis: Intermediate in the production of sulfonated dyes and organic pigments, improving water solubility and fiber affinity.
• Polymer Modification: Functional monomer or additive for introducing anionic sites into polymers, altering surface properties, and enhancing hydrophilicity.
• Corrosion Inhibitor Formulation: Component in specialty formulations designed to protect metal surfaces in industrial systems.
• Electroplating Additive: Used in electroplating baths to improve bath stability and deposit quality.

Basic Information

Product Name	3-Anilinopropanesulphonic Acid
CAS No.	72943-20-5
Molecular Formula	C9H13NO3S
Molecular Weight	215.27 g/mol
Synonyms	3-Anilinopropane-1-sulfonic Acid; N-Phenyl-3-aminopropanesulfonic Acid; 3-(Phenylamino)propane-1-sulfonic Acid; 3-Anilino-1-propanesulfonic Acid; Benzenamine, N-(3-sulfopropyl)-; APSA; 72943-20-5; N-(3-Sulfopropyl)aniline
EINECS	Contact for details

Quality Control

Our 3-Anilinopropanesulphonic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including identity confirmation, purity assay, and impurity profiling, to ensure it meets precise customer requirements and internal specifications. Certificates of Analysis (COA) with detailed chromatographic and spectroscopic data are provided to guarantee traceability and batch-to-batch consistency.

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). The product is hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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