Description

Sulfadimethoxine CAS NO 122-11-2 is a long-acting sulfonamide antibiotic belonging to the diaminopyrimidine class, valued for its potent bacteriostatic activity against a broad spectrum of Gram-positive and Gram-negative organisms. Its primary commercial significance lies in veterinary medicine, where it is a trusted agent for treating systemic infections and supporting animal health. This compound is essential for manufacturers in the pharmaceutical, veterinary medicine, and animal feed additive sectors requiring a reliable and effective antimicrobial agent.

Application

• Veterinary Pharmaceuticals: Primary use in the formulation of injectable solutions, oral suspensions, and premixes for the treatment of respiratory, gastrointestinal, and systemic infections in livestock (cattle, swine, poultry) and companion animals.
• Aquaculture: Used as a therapeutic agent in fish farming to control bacterial diseases such as furunculosis and columnaris.
• Feed Additives: Incorporated into medicated animal feeds for disease prevention and growth promotion under veterinary supervision.
• Poultry Coccidiosis Control: Employed in combination with other agents for the management of coccidial infections in poultry.
• Research & Development: Serves as a reference standard and active pharmaceutical ingredient (API) in microbiological and pharmacological research.
• Intermediate for Synthesis: Used in the chemical synthesis of more complex sulfonamide derivatives and conjugates.

Basic Information

Product Name	Sulfadimethoxine
CAS No.	122-11-2
Molecular Formula	C12H14N4O4S
Molecular Weight	310.33 g/mol
Synonyms	4-Amino-N-(2,6-dimethoxy-4-pyrimidinyl)benzenesulfonamide; Sulfadimethoxine; Sulfadimethoxin; Sulfadimetoxin; Sulfadimethoxinum; Sulphadimethoxine; Agribon; Albon; Bactrovet; Diasulfa; Diasulfyl; Madribon; SDM
EINECS	204-519-5

Quality Control

Our Sulfadimethoxine is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing to ensure it meets high-purity standards suitable for pharmaceutical and veterinary applications. A detailed Certificate of Analysis (COA) confirming identity, purity, and impurity profiles is provided with each shipment. We can supply material compliant with various pharmacopoeial standards, including USP and EP, upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from heat and incompatible materials. The product is light-sensitive and should be stored away from direct light exposure.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Identification (HPLC)	Retention time corresponds to reference standard
Assay (HPLC)	98.0% - 102.0% (on dried basis)
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0% Any individual impurity ≤ 0.5%
Solubility	Practically insoluble in water; soluble in dilute acids and alkali hydroxides

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