Description

5,6,7,8-Tetrahydronaphthalene-2-Sulfonic Acid is a specialized organic sulfonic acid derivative of tetrahydronaphthalene, serving as a versatile intermediate and building block in advanced chemical synthesis. Its sulfonic acid group makes it a valuable precursor for creating dyes, pigments, and functional materials requiring water solubility or ionic character. This compound is particularly relevant for manufacturers in the fine chemical, pharmaceutical, and agrochemical sectors seeking to develop new active ingredients or performance additives.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Dye & Pigment Manufacturing: Acts as a precursor for sulfonated azo dyes and other colorants, enhancing solubility and fastness properties.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and other crop protection agents.
• Chemical Research & Development: Serves as a reagent for introducing the sulfonic acid functional group in novel compound libraries.
• Surfactant & Detergent Industry: Potential intermediate for creating specialized anionic surfactants with unique hydrophobic profiles.
• Polymer Modification: Can be used to sulfonate polymers, altering their solubility, adhesion, and ionic exchange properties.
• Catalyst & Ligand Preparation: Useful in the synthesis of metal-organic complexes and acidic catalysts.

Basic Information

Product Name	5,6,7,8-Tetrahydronaphthalene-2-Sulfonic Acid
CAS No.	93-12-9
Molecular Formula	C10H12O3S
Molecular Weight	212.26 g/mol
Synonyms	2-Tetralinsulfonic Acid; 5,6,7,8-Tetrahydro-2-naphthalenesulfonic Acid; 2-Sulfo-5,6,7,8-tetrahydronaphthalene; Tetrahydronaphthalene-2-sulfonic Acid; β-Tetralinsulfonic Acid; 2-Tetrahydronaphthalenesulfonic Acid; 1,2,3,4-Tetrahydronaphthalene-6-sulfonic Acid
EINECS	202-220-9

Quality Control

Our 5,6,7,8-Tetrahydronaphthalene-2-Sulfonic Acid is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay, impurity profiling, and identity confirmation, to ensure it meets the high standards required for synthetic applications. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting purity and key physical-chemical parameters.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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