
Pharmaceutical-grade Sulfadiazine (CAS 68-35-9), 99.0–101.0%, supplied wholesale by Zyntex to licensed producers. Sulfonamide API for veterinary trimethoprim combinations and starting material for silver sulfadiazine. CoA and SDS.
Sulfadiazine (C10H10N4O2S) is a white to yellowish-white crystalline powder that is practically insoluble in water but dissolves in dilute alkali and mineral acids. It melts with decomposition at about 252–256°C and darkens slowly in light.
Veterinary producers combine it with Trimethoprim in oral powders, pastes, solutions and injectables for livestock, horses and companion animals. Producers of topical products convert it into silver sulfadiazine, the active ingredient of creams used in burn care. Human oral products are also made in some markets.
It belongs to the sulfonamide family together with Sulfadimidine, Sulfaguanidine and Sulfanilamide. Zyntex supplies it from qualified API producers, only to companies licensed for pharmaceutical or veterinary use.
Main application areas:
🐄 Veterinary Medicines
Combined with trimethoprim in powders, pastes and injectables.
🧴 Burn Care Creams
Starting material for the silver salt used in burn creams.
💊 Human Medicines
API for oral formulations in some markets.
🔬 Generic Development
Development and reference material.
| Parameter | Standard Value |
|---|---|
| Product Name | Sulfadiazine |
| CAS Number | 68-35-9 |
| Molecular Formula / Weight | C10H10N4O2S / 250.28 g/mol |
| Assay / Purity (HPLC) | 99.0% – 101.0% (On Dried Basis) |
| Appearance | White, yellowish-white crystalline powder |
| Melting Point | 252 °C to 256 °C (with Decomposition) |
| Loss on Drying | ≤ 0.5% |
| Documents | CoA and SDS with every lot |
⚠️ Safety & Handling: Pharmacologically active substance that may cause allergic skin and respiratory reactions, especially in people sensitive to sulfonamides. Avoid inhalation of dust and contact with skin; wear gloves, eye protection and dust protection. Store in tightly closed, light-resistant containers. Always consult the Safety Data Sheet (SDS) for full classification and handling instructions.
Is it used to make the silver salt for burn creams?
Yes. The silver salt used in burn creams is produced from it and a silver compound by licensed producers.
Who can purchase this API?
It is supplied only to pharmaceutical and veterinary companies holding the licenses required for API purchase and use.
How can I get a price and documents?
Prices depend on quantity, packaging and destination. Contact us with your required volume to receive a quotation together with the CoA and SDS.