Overview
Sulfanilamide, commonly referred to as crystalline sulfanilamide, is a synthetic antibacterial compound belonging to the sulfonamide class. It was one of the first antibiotics used clinically and remains significant in both human and veterinary medicine. The compound is characterized by its white crystalline appearance and is primarily utilized for its bacteriostatic properties. Sulfanilamide functions by inhibiting the growth of bacteria, making it effective against a range of Gram-positive and Gram-negative organisms. Its discovery marked a milestone in the development of antimicrobial therapies, paving the way for modern sulfa drugs.
Physical and Chemical Properties
Sulfanilamide is a stable compound under normal conditions, with a melting point of 165-166 °C. It is sparingly soluble in water but dissolves readily in organic solvents such as acetone and ethanol. The compound's density is approximately 1.08 g/cm³, and it exhibits low volatility. The molecular structure of sulfanilamide includes a sulfonamide group attached to an aromatic ring, which is critical for its antibacterial activity. Its stability and solubility profile make it suitable for formulation into various pharmaceutical dosage forms, including tablets and topical preparations.
Main Applications
Sulfanilamide is predominantly used in the pharmaceutical industry as an antibacterial agent. It is effective in treating infections caused by susceptible bacteria, including streptococcal and staphylococcal infections. In veterinary medicine, it is employed to combat bacterial diseases in livestock and poultry. Beyond its medicinal uses, sulfanilamide serves as an intermediate in the synthesis of other sulfonamide derivatives and specialty chemicals. Its role in chemical research and development underscores its versatility in both industrial and laboratory settings.
Safety and Storage
While sulfanilamide is generally safe when handled properly, precautions must be taken to avoid exposure. Inhalation of dust or direct skin contact can cause irritation, so personal protective equipment (PPE) such as gloves and masks should be used. Proper ventilation is recommended in areas where the compound is processed or stored. Storage conditions should maintain sulfanilamide in a cool, dry environment, away from light and moisture to preserve its stability. Containers should be tightly sealed to prevent contamination and degradation over time.
B2B Procurement Guide
When procuring sulfanilamide, B2B buyers should prioritize suppliers with certified quality control measures. Key factors to consider include the compound's purity (typically 98% or higher), batch-to-batch consistency, and compliance with regulatory standards such as USP or EP. Pricing varies based on quantity and purity, with bulk purchases often attracting discounts. Buyers are advised to request samples and certificates of analysis (CoA) before finalizing orders to ensure product suitability for intended applications.
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