| Melting Point | 225–233°C |
| Vapor Pressure | Very low at room temp |
| Color | Green-yellow |
| UN Number | UN3077 |
| Molecular Formula | C13H8Cl2N2O4 |
| Molecular Weight | 327.12 g/mol |
| Loss on Drying | ≤0.5% |
| Solubility Information | Soluble in methanol:acetone [1:1] (50mg/mL). |
| Sulfated Ash | ≤0.1% |
| Beilstein | 2820605 |
| Solubility | Soluble in methanol:acetone (1:1), ~50 mg/mL |
| CAS Number | 50-65-7 |
| PubChem CID | 4477 |
| InChIKey | RJMUSRYZPJIFPJ-UHFFFAOYSA-N |
| Beilstein Registry Number | 2820605 |
Niclosamide is a chlorinated salicylanilide — a benzamide built from a hydroxylated, chlorinated salicylic acid core linked to a chloronitroaniline ring. It’s on the World Health Organization’s Model List of Essential Medicines as an oral anthelmintic used against tapeworm infections, and it’s separately registered as a molluscicide for controlling snail vectors in schistosomiasis-endemic regions. Sarchem Labs supplies it as a research/bulk chemical, not as either finished product.
Beyond its long-established anthelmintic and molluscicide history, niclosamide has become a widely studied research compound: it’s investigated as a repurposing candidate against several viral targets, as an inhibitor of Wnt/β-catenin signaling in cancer biology research, and as a reference compound in analytical method development. Pharmaceutical R&D teams use bulk-grade material like Sarchem’s for early-stage formulation, solubility, and stability studies before any regulated development pathway.
