Description

6-Nitro-1-Diazo-2-Naphthol-4-Sulfonic Acid is a specialized diazonium compound and sulfonic acid derivative, serving as a critical intermediate in the synthesis of high-value dyes and pigments. Its unique molecular structure, featuring both a nitro group and a diazonium moiety, makes it essential for creating azo colorants with specific chromophoric properties and light-fastness. This chemical is primarily utilized by manufacturers in the dye and pigment industry, as well as by research institutions developing advanced functional materials.

Application

• Key intermediate in the synthesis of azo dyes and pigments, particularly for textiles, inks, and coatings.
• Precursor for manufacturing light-sensitive materials and photographic chemicals.
• Used in research and development of advanced organic colorants with specific spectral properties.
• Intermediate in the production of functional dyes for non-textile applications, such as lasers and optical data storage.
• Starting material for synthesizing complex sulfonated aromatic compounds used in various chemical processes.
• Employed in analytical chemistry as a reagent or derivatization agent for specific detection methods.

Basic Information

Product Name	6-Nitro-1-Diazo-2-Naphthol-4-Sulfonic Acid
CAS No.	50412-00-5
Molecular Formula	C₁₀H₅N₃O₆S
Molecular Weight	295.23 g/mol
Synonyms	6-Nitro-1-diazo-2-naphthol-4-sulfonic acid; 1-Diazo-2-hydroxy-6-nitro-4-naphthalenesulfonic acid; 4-Sulfo-6-nitro-1-diazo-2-naphthol; 6-Nitro-1,2-naphthoquinone-1-diazide-4-sulfonic acid; Diazonaphthol sulfonic acid derivative; NDSA (abbreviation); Light-sensitive dye intermediate; Azo dye precursor CAS 50412-00-5
EINECS	Contact for details

Quality Control

Our production of 6-Nitro-1-Diazo-2-Naphthol-4-Sulfonic Acid adheres to stringent quality control protocols to ensure batch-to-batch consistency and high purity for industrial applications. The material is characterized using advanced analytical techniques including HPLC, NMR, and FTIR. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

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 sealed to prevent absorption of atmospheric moisture, which can compromise product stability and performance.

Specification

Item	Specification
Appearance	Yellow to orange powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Solubility	Soluble in alkaline aqueous solutions
Heavy Metals (as Pb)	≤ 20 ppm

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