
Methylphenobarbital (mephobarbital, CAS 115-38-8), a barbiturate controlled under Schedule IV of the UN 1971 Convention. Supplied by Zyntex exclusively to licensed pharmaceutical companies and authorized laboratories with valid permits.
Methylphenobarbital (C13H14N2O3) is a white crystalline powder that is practically insoluble in water. In the body, it converts largely to Phenobarbital, so the two substances act similarly.
In addition, its medical use has declined strongly, and today licensed companies use it mainly in a few antiepileptic products and as a reference standard for authorized analytical and forensic laboratories. It appears in Schedule IV of the UN Convention on Psychotropic Substances of 1971, so every transaction requires valid import and export authorizations.
Zyntex therefore does not sell methylphenobarbital to individuals or unlicensed companies, and each supply has full documentation from producer to recipient. Other controlled APIs in our range, such as Lorazepam, follow the same rules.
Typical uses include, for example:
💊 Licensed Pharmaceuticals
API for authorized antiepileptic products.
🔬 Reference Standards
Material for authorized analytical laboratories.
🧪 Forensic Analysis
Reference for forensic as well as toxicology testing.
📋 Regulated Supply
Supply only with valid permits.
| Parameter | Standard Value |
|---|---|
| Product Name | Methylphenobarbital (Mephobarbital) |
| CAS Number | 115-38-8 |
| Molecular Formula / Weight | C13H14N2O3 / 246.26 g/mol |
| Assay (Purity) | Min. 99% |
| Regulatory Status | UN 1971 Convention, Schedule IV (controlled substance) |
| Documents | CoA, SDS and permit documentation |
⚠️ Safety & Handling: Potent psychotropic substance; toxic if swallowed and may damage the unborn child. 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 it is an internationally controlled substance, supply is only possible to companies and laboratories with valid licenses and authorizations.
How does it relate to phenobarbital?
The body converts it largely into phenobarbital, so both substances have similar effects.
How can licensed buyers request a quotation?
Send your request through our contact page together with copies of your valid licenses and the import authorization from your national authority. We cannot process requests without these documents.