Dequalinium Chloride
Dequalinium Dichloride
- CAS
- 522-51-0
- EC
- 208-330-9
- Sectors
- Pharma & Healthcare, Personal Care & Cosmetics
Dequalinium Chloride (CAS 522-51-0) is a quaternary ammonium antiseptic that appears as a white or yellowish-white hygroscopic powder, with broad-spectrum antimicrobial activity against Gram-positive and Gram-negative bacteria as well as fungi, and is used in pharmaceutical lozenges, mouthwashes and gynecological preparations and as a biocide in cosmetics and hygiene formulations.
Typical Properties
| Molecular formula | C30H40N4.2Cl |
|---|---|
| Molecular weight | 527.57 g/mol |
| Appearance | White or yellowish-white powder, hygroscopic. |
| Form | neat |
| Color | Beige |
| Melting point | 326 °C (decomp) |
| GHS signal word | Warning · Irritant / harmful |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Dequalinium Chloride
Applications
Used in pharmaceutical lozenges, mouthwashes, and gynecological preparations for local antiseptic treatment. It also acts as a biocide in cosmetics and hygiene formulations.
Safety & Risks
Low systemic toxicity but may irritate skin and mucosa. Avoid inhalation of powder and prolonged exposure to moisture.
Packaging
Supplied in 1–25 kg HDPE or aluminum containers. Store in a cool, dry, and shaded place, sealed tightly against humidity.