Description

2-Chloronaphthalene-1-Sulfonic Acid is a specialized aromatic sulfonic acid derivative, serving as a key intermediate in fine chemical synthesis. Its value lies in its bifunctional structure, which allows for selective chemical modifications at both the sulfonic acid and chloro-substituted aromatic positions. This compound is essential for manufacturers in the agrochemical and pharmaceutical sectors, where it is used to synthesize advanced active ingredients and functional dyes.

Application

• Agrochemical Intermediate: A crucial building block for the synthesis of advanced herbicides, fungicides, and plant growth regulators.
• Pharmaceutical Synthesis: Used in the production of active pharmaceutical ingredients (APIs), particularly for compounds requiring a naphthalene sulfonate backbone.
• Dye and Pigment Manufacturing: Acts as a key intermediate in the synthesis of acid dyes, reactive dyes, and organic pigments.
• Polymer Additives: Employed in the creation of light stabilizers, antioxidants, and other specialty additives for polymer systems.
• Research & Development: Serves as a versatile reagent in organic chemistry research for coupling reactions and the development of new sulfonated materials.
• Surfactant Precursor: Can be further processed to create specialized anionic surfactants for industrial applications.

Basic Information

Product Name	2-Chloronaphthalene-1-Sulfonic Acid
CAS No.	102879-06-1
Molecular Formula	C₁₀H₇ClO₃S
Molecular Weight	242.68 g/mol
Synonyms	2-Chloro-1-naphthalenesulfonic Acid; 1-Naphthalenesulfonic acid, 2-chloro-; 2-Chloronaphthalenesulfonic Acid; NSC 406306; 2-Chloro-1-naphthalenesulphonic Acid; 2-Chloronaphthalene-1-sulphonic Acid; 2-Chloro-1-sulfonaphthalene
EINECS	Contact for details

Quality Control

Our 2-Chloronaphthalene-1-Sulfonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications. Certificates of Analysis (COA) detailing all test results are provided with every shipment to guarantee traceability and batch-to-batch consistency.

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 (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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