Phenibut HCL

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Phenibut HCL (4-Amino-3-phenylbutanoic acid hydrochloride) is a synthetic GABA analogue with reported nootropic properties and functional activity at GABA-B receptors in preclinical research models. It is not formally classified as a gabapentinoid drug.

What Is Phenibut HCL?

Phenibut HCL is the hydrochloride salt form of β-Phenyl-γ-Aminobutyric Acid, a structural analogue of GABA in which a phenyl group is substituted at the β-position. This modification is associated with improved physicochemical properties compared to unmodified GABA, including better central nervous system penetration.

Phenibut was first synthesized in Russia and has been described in neurological and pharmacological literature since the 1960s, including early work referenced by Lapin I., CNS Drug Reviews (2001).

What Is the Mechanism of Action of Phenibut HCL?

Phenibut HCL is primarily associated with GABA-B receptor–mediated activity in preclinical studies. It acts as a centrally active GABA analogue that modulates inhibitory neurotransmission.

Limited preclinical evidence suggests possible indirect effects on:

• Voltage-gated calcium channel–related pathways
• Dopaminergic signaling systems

However, these secondary mechanisms are not fully established and should be considered exploratory.

The phenyl substitution at the β-position distinguishes Phenibut from GABA and is associated with altered pharmacological and pharmacokinetic properties, as described in Shulgina (1986).

What Research Applications Is Phenibut HCL Used For?

Phenibut HCL is used in preclinical neurological research focused on inhibitory neurotransmission and receptor pharmacology. Documented research areas include:

• GABA-B receptor activity studies in in vitro models
• Neurochemical modulation research in preclinical systems
• Investigations of GABA analogue structure–activity relationships
• Comparative research alongside GABA-related compounds such as gabapentin and pregabalin

Phenibut is widely used as a reference GABA analogue compound in laboratory research contexts.

Regulatory / Reference Classification Note

According to chemical reference databases and safety data sheets, Phenibut HCL is generally described as a GABA analogue research chemical. It is not approved as a therapeutic medication in many jurisdictions and is intended strictly for laboratory research purposes.

What Are the Specifications of Phenibut HCL?

Phenibut HCL is supplied as a white to off-white crystalline powder with ≥98% purity, verified by third-party Certificate of Analysis. It is hygroscopic and should be stored in airtight conditions to maintain stability.

Why Choose PureRawz for Phenibut HCl?

PureRawz provides high-purity research compounds intended for laboratory use. Each batch is supplied with a Certificate of Analysis verifying identity and purity specifications.

Summary

Phenibut HCL is a β-phenyl-substituted GABA analogue (CAS 3060-41-1, MW 215.68 g/mol) that is primarily associated with GABA-B receptor–mediated activity in preclinical research. It has been studied in neurological literature for several decades and is widely used as a reference compound in GABA-related research.

PureRawz supplies Phenibut HCL at ≥98% purity as a crystalline powder, stored under controlled conditions for laboratory research use only.

Disclaimer

This information is for educational and research purposes only and is not medical advice. Products are strictly for laboratory research use and are not intended for human or veterinary consumption. Users must comply with applicable regulatory and institutional guidelines.