Description

2,7-Naphthalenedisulfonyl Chloride is a key bifunctional aromatic sulfonyl chloride derivative, serving as a versatile and reactive building block in advanced organic synthesis. Its value lies in its ability to introduce sulfonamide linkages and act as a cross-linking agent, enabling the creation of complex molecular architectures. This intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty dye industries who require high-purity functional intermediates for developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Critical for the synthesis of sulfonamide-based drug candidates, including diuretics, carbonic anhydrase inhibitors, and antiviral agents.
• Agrochemical Synthesis: Used in creating novel herbicides, fungicides, and plant growth regulators that incorporate sulfonamide moieties for enhanced efficacy.
• Dye and Pigment Manufacturing: Acts as a precursor for synthesizing sulfonated naphthalene dyes, which offer excellent water solubility and color fastness.
• Polymer Chemistry: Serves as a cross-linking agent or monomer in the production of specialty polymers, such as polyelectrolytes and ion-exchange resins.
• Material Science Research: Employed in the development of organic semiconductors, metal-organic frameworks (MOFs), and other advanced functional materials.
• Bioconjugation and Probe Synthesis: Useful for labeling biomolecules (proteins, peptides) due to its reactivity with amine groups, facilitating the creation of diagnostic probes.

Basic Information

Product Name	2,7-Naphthalenedisulfonyl Chloride
CAS No.	19551-16-7
Molecular Formula	C10H6Cl2O4S2
Molecular Weight	325.18 g/mol
Synonyms	2,7-Naphthalenedisulfonic Acid Dichloride; Naphthalene-2,7-disulfonyl Chloride; 2,7-Dichlorosulfonylnaphthalene; 2,7-Bis(chlorosulfonyl)naphthalene; NSC 403108; 19551-16-7; Naphthalene-2,7-disulphonyl chloride
EINECS	243-158-3

Quality Control

Every batch of our 2,7-Naphthalenedisulfonyl Chloride is manufactured and tested under a strict quality management system. We ensure compliance with relevant industry standards and customer-specific requirements. Comprehensive analytical testing, including HPLC for purity and identity confirmation, is performed. Certificates of Analysis (COA) documenting all critical parameters are available upon request to guarantee traceability and batch-to-batch consistency for your R&D and production needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis. Keep away from moisture, bases, and strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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