Description

6-(Methylamino)-5-[[2-Sulpho-4-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]Naphthalene-2-Sulphonic Acid is a high-purity, water-soluble azo dye intermediate of significant industrial importance. Its complex molecular structure, featuring multiple sulphonic acid groups, provides excellent solubility and substantivity, making it a critical precursor for the synthesis of specialized dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty chemical sectors seeking to produce vibrant, wash-fast colors with specific application properties.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-performance reactive dyes for cotton, wool, and nylon fibers.
• Specialty Pigment Manufacturing: Used in the production of pigments for inks, coatings, and plastics requiring specific color strength and stability.
• Textile Dyeing and Printing: Imparts color to textiles in processes demanding high fastness to light, washing, and perspiration.
• Biological Staining Agent: Potential use as a precursor for developing stains used in histological and cytological applications.
• Research & Development: Serves as a standard or reagent in chemical research focused on azo chemistry and dye synthesis.
• Functional Material Synthesis: Can be utilized in creating materials for optoelectronics or sensors due to its chromophoric structure.

Basic Information

Item	Details
Product Name	6-(Methylamino)-5-[[2-Sulpho-4-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]Naphthalene-2-Sulphonic Acid
CAS No.	67846-60-0
Molecular Formula	C19H19N3O11S3
Molecular Weight	585.56 g/mol
Synonyms	Acid Red 337 (C.I. 17200); Reactive Red 180 precursor; 6-Methylamino-5-[(2-sulfo-4-[(2-sulfooxyethyl)sulfonyl]phenyl)azo]-2-naphthalenesulfonic acid; C.I. 17200; Azo dye intermediate 67846-60-0; 2-Naphthalenesulfonic acid, 6-(methylamino)-5-[[2-sulfo-4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-; Sodium 6-(methylamino)-5-[(2-sulfo-4-[(2-sulfooxyethyl)sulfonyl]phenyl)azo]naphthalene-2-sulfonate
EINECS	Contact for details

Quality Control

Our production of 6-(Methylamino)-5-[[2-Sulpho-4-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]Naphthalene-2-Sulphonic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. Each lot undergoes rigorous analytical testing, including HPLC for assay and impurity profiling, to meet precise customer specifications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and related substances is provided with every shipment, supporting compliance in regulated supply chains.

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 (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark red to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Solubility (1% in Water)	Complete, clear solution
Heavy Metals (as Pb)	≤ 20 ppm

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