1. Product Information
Product name: Sulfanilamide
CAS No.: 63-74-1
EINECS No.: 200-563-4Chemical Formula: C₆H₈N₂O₂S
Molecular Weight: 172.21
Synonyms: 4-Aminobenzenesulfonamide, p-Aminobenzenesulfonamide, Sulphanilamide
Appearance: White crystalline powder, odourless
Product Type: Pharmaceutical intermediate, sulfa-series raw material, analytical reagent2. Physical & Chemical Properties
Melting Point 164-167 °C
Solubility 7.5 g/L in water (25 °C); soluble in ethanol, acetone, glycerol; insoluble in ether, benzene
pH (0.5 % aqueous solution) 5.8-6.1
Stability Light-sensitive, darkens upon long-time light exposure. Stable under normal conditions. Incompatible with strong oxidizing agents and strong acids.3. Quality Specification (Industrial / Pharma Grade)
| Test Item | Specification (USP / BP‑Ph.Eur) |
|---|---|
| Appearance | White or yellowish‑white crystalline powder, odourless |
| Identification | IR spectrum conforms to reference standard; TLC identification complies |
| Assay (on dried basis) | 99.0 %‑101.0 % |
| Melting Range | 164.5 °C‑166.0 °C |
| Acidity | Complies with test |
| Loss on Drying | ≤0.5 % |
| Residue on Ignition (Sulphated Ash) | ≤0.1 % |
| Related Substances | ≤0.5 % |
| Heavy Metals | ≤10 ppm |
| Chloride | ≤0.01 % |
| Sulphate | ≤0.02 % |
4. Applications
Pharmaceutical intermediate: Key raw material for manufacturing various sulfa antibacterial drugs.
Analytical chemistry: Reagent for nitrite detection in water and food samples.
Biochemical research: Bacteriostatic agent for laboratory culture medium preparation.
Fine chemical synthesis: Starting material for dyestuffs and other organic compounds.
5. Packaging, Storage & Transportation
- Packaging: 25 kg fiber drum.
- Storage: Keep tightly sealed. Store in cool, dry and dark warehouse. Avoid direct sunlight and strong light. Keep away from oxidizing substances.
- Transport: Ordinary solid chemical. Prevent moisture and sun exposure.
6. Safety Remarks (Refer to SDS for full details)
- May cause irritation to eyes, skin and respiratory tract. Wear chemical-resistant gloves and safety goggles during handling.
- In case of contact, rinse thoroughly with plenty of clean water.
- Fire-extinguishing media: dry powder, carbon dioxide, water spray, foam.
chemical.tnj
+8618949823763
tnjchem
2881500864