Description

4-Hydroxy-7-Methylamino-2-Naphthanlenesulfonicacid is a specialized naphthalene derivative sulfonic acid compound, serving as a key intermediate in the synthesis of advanced colorants and functional materials. Its molecular structure, featuring both hydroxy and methylamino substituents, provides unique reactivity and chromophoric properties essential for creating high-value products. This intermediate is primarily utilized by manufacturers in the dye and pigment, pharmaceutical, and advanced material research sectors seeking to develop products with specific optical or chemical functionalities.

Application

• Dye and Pigment Intermediate: A crucial building block for the synthesis of acid dyes, reactive dyes, and specialized pigments, particularly for textiles, leather, and paper.
• Pharmaceutical Intermediate: Used in the research and development of active pharmaceutical ingredients (APIs) and diagnostic agents that require a naphthalene sulfonic acid core.
• Functional Material Synthesis: Serves as a precursor for creating optical brighteners, fluorescent markers, and other specialty chemicals with light-absorbing or emitting properties.
• Research & Development: Employed in academic and industrial R&D laboratories for exploring new organic compounds and polymerization processes.
• Chemical Synthesis Reagent: Acts as a sulfonating agent or a structured moiety in multi-step organic synthesis for complex molecules.

Basic Information

Item	Detail
Product Name	4-Hydroxy-7-Methylamino-2-Naphthanlenesulfonicacid
CAS No.	22346-43-6
Molecular Formula	C11H11NO4S
Molecular Weight	253.27 g/mol
Synonyms	7-Methylamino-4-hydroxy-2-naphthalenesulfonic acid; 4-Hydroxy-7-(methylamino)-2-naphthalenesulfonic acid; 2-Naphthalenesulfonic acid, 4-hydroxy-7-(methylamino)-; 7-Methylamino-4-hydroxynaphthalene-2-sulfonic acid; 4-Hydroxy-7-methylamino-2-naphthalenesulfonic acid; 22346-43-6; 4-Hydroxy-7-methylamino-2-naphthanlenesulfonic acid
EINECS	Contact for details

Quality Control

Our 4-Hydroxy-7-Methylamino-2-Naphthanlenesulfonicacid 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 precise specifications for industrial and research use. Certificates of Analysis (COA) documenting batch-specific results are available upon request to support your quality assurance and regulatory compliance needs.

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). This product is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation. Keep away from strong acids and organic solvents.

Specification

Item	Specification
Appearance	Off-white to light brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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