Description

1,2-Naphthoquinone-4-Sulfonic Acid Sodium Salt is a high-purity, water-soluble quinone derivative essential for advanced organic synthesis and analytical chemistry. Its core value lies in its role as a versatile intermediate and a key reagent for colorimetric detection and dye manufacturing. This compound is critically needed by research institutions, pharmaceutical developers, and specialty chemical producers for applications ranging from biochemical assays to the synthesis of functional dyes and pigments.

Application

• Biochemical Reagent: Used as a chromogenic substrate or intermediate in enzymatic assays and diagnostic test kits.
• Dye & Pigment Intermediate: Serves as a key precursor in the synthesis of specific azo dyes, sulfur dyes, and functional pigments.
• Analytical Chemistry: Employed as a derivatization agent or standard for the detection and quantification of amines, thiols, and other nucleophiles via colorimetric methods.
• Photographic Chemicals: Acts as a component in certain specialized photographic developers and sensitizers.
• Organic Synthesis: A valuable building block for constructing more complex quinone-based structures with potential biological or electronic activity.
• Crosslinking Agent: Can be utilized in polymer chemistry for modifying proteins or synthetic polymers.

Basic Information

Product Name	1,2-Naphthoquinone-4-Sulfonic Acid Sodium Salt
CAS No.	521-24-4
Molecular Formula	C10H5NaO5S
Molecular Weight	260.20 g/mol
Synonyms	1,2-Naphthoquinone-4-sulfonate sodium salt; Sodium 1,2-naphthoquinone-4-sulfonate; 4-Sulfo-1,2-naphthoquinone sodium salt; NSC 403914; 1,2-Naphthoquinone-4-sulfonic acid sodium; 1,2-Naphthoquinone-4-sulphonic acid sodium salt; β-Naphthoquinone-4-sulfonic acid sodium salt
EINECS	208-306-5

Quality Control

Our 1,2-Naphthoquinone-4-Sulfonic Acid Sodium Salt is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for research and industrial use. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be kept under dry conditions. For long-term storage, consider using a desiccant.

Specification

Item	Specification
Appearance	Yellow to orange-yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Solubility (in Water)	Clear, yellow solution

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