Description

Potassium 1,2-Naphthoquinone-4-Sulfonic Acid is a key organic intermediate and analytical reagent, valued for its role as a precursor in the synthesis of dyes and its use in specific biochemical assays. This compound is particularly significant for its reactivity and function as a derivatization agent or a chromogenic substrate in various chemical processes. It is primarily utilized by manufacturers and research laboratories in the dye, pharmaceutical, and analytical chemistry sectors.

Application

• Dye Intermediate: A crucial precursor in the synthesis of specific naphthoquinone-based dyes and pigments.
• Analytical Chemistry Reagent: Used as a derivatizing agent or chromogenic substrate for the detection and quantification of amines, thiols, and other functional groups.
• Biochemical Research: Employed in enzymatic assays and as a probe in studying redox processes due to its quinone structure.
• Pharmaceutical Synthesis: Serves as a building block in the synthesis of certain pharmacologically active quinone compounds.
• Photographic Chemicals: Can be used in the formulation of specialized photographic developers or sensitizers.
• Corrosion Inhibitor Formulation: A component in certain specialized formulations for metal surface treatment.

Basic Information

Product Name	Potassium 1,2-Naphthoquinone-4-Sulfonic Acid
CAS No.	5908-27-0
Molecular Formula	C10H5KO5S
Molecular Weight	276.31 g/mol
Synonyms	1,2-Naphthoquinone-4-sulfonic acid potassium salt; Potassium 1,2-naphthoquinone-4-sulphonate; 4-Sulfo-1,2-naphthoquinone potassium salt; K2 Salt of 1,2-Naphthoquinone-4-sulfonic acid; Folin's Reagent (related); NSC 40156; 1,2-Naphthoquinone-4-sulfonic acid, monopotassium salt
EINECS	227-603-5

Quality Control

Our Potassium 1,2-Naphthoquinone-4-Sulfonic Acid is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and easily oxidized; it is recommended to store under an inert atmosphere for long-term stability and to minimize exposure to air and moisture upon opening.

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)	Reported on COA
Solubility	Soluble in water, slightly soluble in ethanol

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