
Zopiclone (CAS 43200-80-2), a cyclopyrrolone hypnotic API controlled in many countries. Supplied by Zyntex exclusively to licensed pharmaceutical companies with valid national permits and, where required, import and export authorizations.
Zopiclone (C17H17ClN6O3) is a white to faintly yellowish powder of the cyclopyrrolone class. Although its structure differs from benzodiazepines such as Lorazepam, it acts on the same receptor complex. In addition, its (S)-enantiomer, eszopiclone, appears in separate products.
For example, licensed pharmaceutical companies use it in film-coated tablets for short-term treatment of sleep disorders. Many countries control it under national narcotics and psychotropics laws, so every purchase requires the appropriate national licenses and, for international shipments, import and export authorizations.
Zyntex therefore does not sell it to individuals, pharmacies or companies without the required licenses. Each supply follows the applicable regulations and has full documentation from producer to recipient.
Typical uses include, for example:
💊 Tablets
API for licensed film-coated tablets.
🔬 Reference Standards
Material for authorized analytical laboratories.
📋 Regulated Supply
Supply only with valid permits.
🧪 Generic Development
Development material for licensed companies.
| Parameter | Standard Value |
|---|---|
| Product Name | Zopiclone |
| CAS Number | 43200-80-2 |
| Molecular Formula / Weight | C17H17ClN6O3 / 388.81 g/mol |
| Assay (Purity) | 98.5% – 101.5% |
| Regulatory Status | Controlled substance in many countries |
| Documents | CoA, SDS and permit documentation |
⚠️ Safety & Handling: Potent psychotropic substance. Handle only in authorized facilities with access control, and also wear gloves, eye protection and respiratory protection. Store locked and in accordance with national regulations for controlled substances. Always consult the Safety Data Sheet (SDS), because it contains the full classification and handling instructions.
Can it be purchased without a license?
No. Because many countries control it, supply is only possible to companies with valid licenses and, where required, import and export authorizations.
What is the difference between zopiclone and eszopiclone?
Zopiclone is the racemic mixture, whereas eszopiclone contains only the active (S)-enantiomer.
How can licensed companies request a quotation?
Send your request through our contact page together with copies of your valid licenses and, where required, the import authorization from your national authority. We cannot process requests without these documents.