Description

Closantel Sodium is a high-purity, synthetic anthelmintic compound, specifically a salicylanilide derivative, widely recognized for its potent antiparasitic activity. Its primary value lies in its exceptional efficacy against a broad spectrum of nematodes and trematodes, making it a critical active pharmaceutical ingredient (API) in veterinary medicine. This product is essential for manufacturers developing injectable solutions, drenches, and feed additives for livestock, including cattle, sheep, and goats, to control parasitic infections and promote animal health and productivity.

Application

• Primary Active Pharmaceutical Ingredient (API) in veterinary anthelmintic formulations.
• Manufacturing of injectable solutions for the treatment of liver fluke (Fasciola hepatica) and other internal parasites in ruminants.
• Key component in oral drenches and pour-on solutions for cattle and sheep.
• Used in the production of medicated feed premixes for herd-level parasite control programs.
• Intermediate in the synthesis of other specialized veterinary pharmaceutical compounds.
• Research and development of new antiparasitic drugs and combination therapies.

Basic Information

Product Name	Closantel Sodium
CAS No.	61438-64-0
Molecular Formula	C22H13Cl2I2N2O2•Na
Molecular Weight	701.06 g/mol
Synonyms	Closantel Sodium Salt; 5-Chloro-N-[2-chloro-4-(4-chlorophenoxy)phenyl]-2-hydroxy-3-iodobenzamide Sodium Salt; 4'-Chloro-3,5-diiodosalicylanilide-4-chlorophenyl ether Sodium Salt; R-31520 (Sodium Salt); Seponver; Flukiver; Closamectin (component); Closantel (sodium form)
EINECS	Contact for details

Quality Control

Our Closantel Sodium is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including identification, assay, and impurity profiling, to meet stringent specifications for pharmaceutical use. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with relevant standards. We support our partners with full traceability and documentation for regulatory submissions.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time corresponds to reference standard
Assay (HPLC)	98.0% - 102.0% (on anhydrous basis)
Water Content (KF)	≤ 5.0%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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