
Spirobrorphine (SPB) is an opioid analgesic of the orphine family (Brorphine, Spirochlorphine, Cychlorphine and others), which has strong analgesic and euphoric effects. The opioid potency of Spirobrorphine is more than 2 times that of fentanyl.
This drug is a designer research substance designed to study analgesic properties in laboratory conditions.
The chemical structure of Spirobrorphine has many similarities with brorphine and orphine.
Studies in mice have shown that Spirobrorphine acts as a strong analgesic, causing relaxing and hypnotic effects, simultaneously causing high levels of opioid euphoria.
The legal status of the drug is unclear, it is an analog of brorphine and orphine, and may not be legal in countries where analogues of these drugs are subject to the law.
The toxicological properties of the drug Spirobrorphine have not been fully studied and this substance is intended for study and research in special private laboratories in compliance with all safety rules and standards.

| Synonyms |
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| IUPAC | 8-(1-(4-bromophenyl)ethyl)-1-phenyl-1,3,8-triazaspiro[4.5]decan-4-one |
| Formula | C21H24BrN3O |
| Molecular weight | 414.35 g/mol |
| CAS | |
| Appearance | A solid |
| Purity | ≥ 98 % |
This chemical is intended for research and forensic work.
Adverse properties of Spirobrorphine have not been studied.
The complete chemical formula of Spirobrorphine: 8-(1-(4-bromophenyl)ethyl)-1-phenyl-1,3,8-triazaspiro[4.5]decan-4-one.
Storage conditions of this chemical: in a cool and dry place. The stability of this chemical compound can last up to 2 years, under the right storage conditions.
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