Description

Sulfamethoxypyridazine CAS NO 80-35-3 is a synthetic sulfonamide antibacterial agent belonging to the long-acting class. This compound is valued for its specific activity against a range of gram-positive and gram-negative bacteria, making it a critical intermediate in pharmaceutical synthesis. It is primarily required by manufacturers in the active pharmaceutical ingredient (API) sector for the development and production of antibacterial formulations.

Application

• Primary use as a key pharmaceutical intermediate in the synthesis of antibacterial APIs.
• Research and development of novel veterinary medicines for bacterial infections.
• Used in the preparation of antibacterial combination therapies.
• Reference standard in analytical chemistry and quality control laboratories.
• Starting material for specialized chemical research in medicinal chemistry.
• Potential applications in the study of bacterial resistance mechanisms.

Basic Information

Product Name	Sulfamethoxypyridazine
CAS No.	80-35-3
Molecular Formula	C11H12N4O3S
Molecular Weight	280.30 g/mol
Synonyms	Sulfamethoxypyridazine; 4-Amino-N-(6-methoxy-3-pyridazinyl)benzenesulfonamide; 3-Sulfanilamido-6-methoxypyridazine; SMP; Sulfametin; Sulfamethoxypyridazine; Longasulf; Midicel; Contact for details on additional trade names.
EINECS	201-272-4

Quality Control

Our Sulfamethoxypyridazine is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency, meeting the requirements for pharmaceutical intermediate use. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay, related substances, and residual solvents.

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 incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference standard
Assay (HPLC)	≥ 98.5%
Related Substances (HPLC)	Total impurities ≤ 1.5%
Loss on Drying	≤ 0.5%
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.