Description

2,Naphthol-3,6,8-Trisulfonic Acid is a key organic intermediate and sulfonating agent characterized by its high functionality and reactivity. This compound is essential for introducing sulfonic acid groups into complex molecules, enabling the synthesis of dyes, pigments, and specialty chemicals with enhanced water solubility and specific functional properties. It is primarily sought after by manufacturers in the dye and pigment, pharmaceutical, and agrochemical industries for producing high-value, performance-driven products.

Application

• Dye and Pigment Intermediate: A critical building block for the synthesis of acid dyes, reactive dyes, and food colorants, where it imparts water solubility and color fastness.
• Pharmaceutical Synthesis: Used as a sulfonating agent and intermediate in the production of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Agrochemical Formulations: Employed in the synthesis of sulfonated herbicides and plant growth regulators to improve bioavailability and efficacy.
• Chemical Research & Development: Serves as a versatile reagent in organic synthesis for introducing multiple sulfonic acid groups into target molecules.
• Surfactant and Detergent Industry: Acts as a precursor for the manufacture of specialized anionic surfactants with high emulsifying and dispersing power.
• Photographic Chemicals: Used in the production of certain light-sensitive compounds and developers for photographic films and papers.

Basic Information

Product Name	2,Naphthol-3,6,8-Trisulfonic Acid
CAS No.	6259-66-1
Molecular Formula	C₁₀H₈O₁₀S₃
Molecular Weight	384.36 g/mol
Synonyms	2-Naphthol-3,6,8-trisulfonic acid; 3,6,8-Trisulfo-2-naphthol; 2-Hydroxynaphthalene-3,6,8-trisulfonic acid; NSC 40326; Naphthol trisulfonic acid; 2-Naphthol trisulfonic acid; R salt acid (related); Acid R salt (related)
EINECS	228-416-4

Quality Control

Our production of 2,Naphthol-3,6,8-Trisulfonic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed against rigorous in-house specifications, which typically include assay (purity), identification, and control of key impurities and sulfonation by-products. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment 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 material is hygroscopic (moisture-sensitive) and should be kept away from moisture and incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light brown powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Sulfate 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.