Description

Sulfamethoxydiazine is a synthetic sulfonamide antibiotic belonging to the intermediate-acting class. This compound is valued for its bacteriostatic activity against a broad spectrum of gram-positive and gram-negative organisms. It serves as a critical active pharmaceutical ingredient (API) and a key intermediate for researchers and manufacturers in the pharmaceutical and veterinary medicine sectors.

Application

• Active Pharmaceutical Ingredient (API) in human and veterinary antibacterial formulations.
• Chemical intermediate for the synthesis of more complex sulfonamide derivatives.
• Research and development of novel antimicrobial agents in pharmaceutical laboratories.
• Reference standard for quality control and analytical testing in regulatory and QC labs.
• Component in medicated animal feed for the prevention and treatment of bacterial infections.
• Starting material for academic research in microbiology and medicinal chemistry.

Basic Information

Product Name	Sulfamethoxydiazine
CAS No.	18179-67-4
Molecular Formula	C11H12N4O3S
Molecular Weight	280.30 g/mol
Synonyms	5-Methoxy-2-sulfanilamidopyrimidine; Sulfameter; Sulfamethoxydiazine; 2-Sulfanilamido-5-methoxypyrimidine; Sulfametin; Sulfamethoxydiazinum; SMD; NSC 112682; AHR 857; Bayrena; Durenat; Kiron
EINECS	242-059-8

Quality Control

Our Sulfamethoxydiazine is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets high-purity standards suitable for pharmaceutical applications. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming identity, purity, and conformance to agreed specifications.

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.

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)
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 1.0%
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.