Description

Sulfadiazine CAS NO 68-35-9 is a synthetic sulfonamide antibiotic belonging to the class of short-acting sulfa drugs. It is a critical active pharmaceutical ingredient (API) valued for its potent antibacterial activity against a broad spectrum of microorganisms. This compound is essential for manufacturers in the pharmaceutical industry, particularly for formulating anti-infective medications, veterinary drugs, and topical preparations.

Application

• Human Pharmaceutical API: Primary use as an active ingredient in systemic and topical antibacterial medications.
• Veterinary Medicine: Key component in formulations for treating bacterial infections in livestock, poultry, and companion animals.
• Combination Therapy: Used in fixed-dose combinations, such as with trimethoprim or pyrimethamine, for synergistic effects against specific pathogens.
• Topical Preparations: Incorporated into creams, ointments, and wound dressings for localized infection control.
• Research & Development: Serves as a reference standard and building block in pharmaceutical R&D for novel antimicrobial agents.
• Intermediate Synthesis: Utilized as a chemical intermediate in the synthesis of more complex sulfonamide derivatives.

Basic Information

Product Name	Sulfadiazine
CAS No.	68-35-9
Molecular Formula	C10H10N4O2S
Molecular Weight	250.28 g/mol
Synonyms	4-Amino-N-2-pyrimidinylbenzenesulfonamide; 2-Sulfanilamidopyrimidine; N1-(2-Pyrimidinyl)sulfanilamide; Adiazine; Codiazine; Debenal; Eskadiazine; Microsulfon; Sulfapyrimidine; Sulphadiazine
EINECS	200-685-8

Quality Control

Our Sulfadiazine is manufactured under strict quality management systems. We offer grades compliant with major pharmacopoeial standards, including USP and EP. Every batch undergoes comprehensive analytical testing for identity, purity, and impurity profiles to ensure it meets stringent specifications for pharmaceutical use. A Certificate of Analysis (COA) is provided with each shipment, detailing all test results.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product 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 or almost white powder
Identification (IR)	Conforms
Identification (HPLC)	Conforms
Assay (HPLC)	98.5% - 101.0% (on dried basis)
Loss on Drying	≤ 0.5%
Sulfated Ash	≤ 0.1%
Related Substances (HPLC)	Individual impurity: ≤ 0.5% Total impurities: ≤ 1.0%
Heavy Metals	≤ 20 ppm

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