Description

5-(Dimethylamino)-1-Naphthalenesulfonic Acid is a specialized naphthalene derivative characterized by its sulfonic acid and dimethylamino functional groups. This compound serves as a versatile intermediate and building block in advanced organic synthesis, valued for its unique photophysical and chemical properties. It is primarily utilized by research institutions and industrial manufacturers in the production of dyes, fluorescent probes, and other functional materials.

Application

• Fluorescent Dye & Probe Synthesis: A key precursor for manufacturing dansyl chloride and related fluorescent labeling reagents used in biochemistry and analytical chemistry.
• Organic Synthesis Intermediate: Acts as a building block for creating more complex molecules in pharmaceutical research and fine chemical production.
• Textile & Polymer Industries: Used in the synthesis of specialty dyes and colorants for synthetic fibers and polymers.
• Analytical Chemistry: Employed as a derivatization agent for the detection and quantification of amines, amino acids, and peptides via HPLC or fluorescence spectroscopy.
• Material Science Research: Investigated for the development of novel photochromic materials and sensors due to its electron-donating dimethylamino group.

Basic Information

Product Name	5-(Dimethylamino)-1-Naphthalenesulfonic Acid
CAS No.	4272-77-9
Molecular Formula	C₁₂H₁₃NO₃S
Molecular Weight	251.30 g/mol
Synonyms	5-Dimethylamino-1-naphthalenesulfonic acid; 1-Naphthalenesulfonic acid, 5-(dimethylamino)-; Dansyl acid; 5-(Dimethylamino)naphthalene-1-sulfonic acid; DANS acid; 5-Dimethylaminonaphthalene-1-sulfonic acid; 5-(N,N-Dimethylamino)-1-naphthalenesulfonic acid
EINECS	224-263-9

Quality Control

Our 5-(Dimethylamino)-1-Naphthalenesulfonic Acid 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. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance with your research or production requirements.

Storage

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

Specification

Item	Specification
Appearance	Light yellow to yellow 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.