Description

n-Methyl-n-(3-Carboxy-4-Hydroxyphenylsulfonyl)-1-Amino-8-Hydroxy-3,6-Naphthalenedisulfonic Acid is a high-purity, multi-functional aromatic sulfonic acid derivative. This compound is valued for its complex molecular structure, which provides excellent chelating and dye-intermediate properties. It serves as a critical intermediate in the synthesis of specialized dyes, pigments, and high-performance chemical agents for the textile and fine chemical industries.

Application

• Dye and Pigment Intermediate: A key building block in the synthesis of high-value azo and reactive dyes, particularly for textile applications requiring specific color fastness and brightness.
• Chelating Agent Precursor: Used in the production of specialized chelating agents for water treatment, industrial cleaning formulations, and scale inhibition.
• Analytical Reagent: Employed in the formulation of specific analytical reagents and indicators used in laboratory and industrial testing.
• Fine Chemical Synthesis: Serves as a versatile intermediate in organic synthesis for pharmaceuticals, agrochemicals, and other complex specialty chemicals.
• Photographic Chemicals: Potential use in the synthesis of chemicals for photographic and imaging applications.
• Research & Development: Utilized in academic and industrial R&D for developing new materials and chemical processes.

Basic Information

Product Name	n-Methyl-n-(3-Carboxy-4-Hydroxyphenylsulfonyl)-1-Amino-8-Hydroxy-3,6-Naphthalenedisulfonic Acid
CAS No.	6201-90-7
Molecular Formula	C₁₈H₁₅NO₁₂S₃
Molecular Weight	549.51 g/mol
Synonyms	1-Amino-8-hydroxy-3,6-naphthalenedisulfonic acid, N-methyl-N-(3-carboxy-4-hydroxyphenylsulfonyl)-; 5-[[(1-Amino-8-hydroxy-3,6-disulfo-2-naphthalenyl)methylamino]sulfonyl]-2-hydroxybenzoic acid; Acid Black 210; C.I. 28440; N-Methyl-N-(3-carboxy-4-hydroxyphenylsulfonyl)-1-amino-8-hydroxy-3,6-naphthalenedisulfonic acid; 1-Amino-N-methyl-N-(3-carboxy-4-hydroxyphenylsulfonyl)-8-hydroxy-3,6-naphthalenedisulfonic acid
EINECS	Contact for details

Quality Control

Our production of n-Methyl-n-(3-Carboxy-4-Hydroxyphenylsulfonyl)-1-Amino-8-Hydroxy-3,6-Naphthalenedisulfonic Acid adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure consistent high quality and compliance with customer specifications. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting all critical quality parameters.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after each use to prevent moisture absorption, which can affect product stability and performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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