Phenibut
Also called aminophenylbutyric acid, β-phenyl-GABA, PhGABA and PHG.
A GABA analogue developed in the Soviet Union and taken into space by cosmonauts. It is sold as a supplement in some countries and is a prescription medicine in others.
Sources and notes
- The introductionfrom sourceMoleculeFinder curated
- Other namesfrom sourceWikidataIts English label and aliases on Wikidata.
- Formula and weightcomputedPubChem
- 2D drawingcomputedPubChem structure, drawn by RDKit
- 3D modelfrom sourcePubChem 3D conformerLoaded after the page has painted, and on a phone only when you ask for it; the 2D drawing shows until it arrives.
Where you encounter it
Dispensed on prescription, not sold on a shelf.
Sources and notes
- The line abovefrom sourceMoleculeFinder curatedFrom the group the molecule belongs to.
Explore its structure
Choose a part to light it up.
A carbon carrying both a C=O and an O-H, written COOH. In water it gives up that hydrogen, which is what makes the molecule an acid.
From: standard chemistry.
A nitrogen carrying one or two hydrogens. Its spare pair of electrons can pick up a hydrogen ion, so an amine is a base.
From: standard chemistry.
Six carbons in a flat hexagon, sharing their electrons evenly around the ring. It is stable, flat and oily, and it stacks readily against other flat rings.
From: standard chemistry.
Sources and notes
- The drawingcomputedPubChem structure, drawn by RDKitThe page's one shipped drawing, with the chosen part lit in amber under it.
- The partscomputedFound by ruleEach part is found by a chemical pattern, never picked by hand atom by atom; its words say where they come from.
Properties and sources
Calculated by PubChem
- Molecular formula
- C10H13NO2
- Molecular weight
- 179.22 g/mol
- XLogP3octanol/water, log units
- −1.6
- Polar surface areatopological
- 63.3 Ų
- H-bond donors
- 2
- H-bond acceptors
- 3
- Rotatable bonds
- 4
- Complexity
- 164
Reported Hazard label (GHS), ECHA via PubChem
Warning Irritant pictogram (GHS07); hazard statements H315, H319, H335, H336
Groups it belongs to
- Category
- Prescription medicine
- Family
- Anti-anxiety medicines
- Chemical groups
- Carboxylic Acids, Amines, Aromatics
- Elements
- Nitrogen
- Hazard classes
- Irritant, GHS Warning
C1=CC=C(C=C1)C(CC(=O)O)CNPubChem CID 14113 · Wikidata Q419559 · InChIKey DAFOCGYVTAOKAJ-UHFFFAOYSA-N · Data refreshed
Questions
- What is Phenibut?
- A GABA analogue developed in the Soviet Union and taken into space by cosmonauts. It is sold as a supplement in some countries and is a prescription medicine in others.
- How toxic is Phenibut?
- Its GHS hazard label carries the signal word Warning and the hazard pictogram Irritant. from source
- What kind of molecule is Phenibut?
- Phenibut has the formula C10H13NO2 and a molecular weight of 179.22 g/mol. MoleculeFinder files it under anti-anxiety medicines, in the prescription medicine group. from sourcefrom sourcefrom sourcefrom source
- What else is Phenibut called?
- Phenibut is also called aminophenylbutyric acid, β-phenyl-GABA, PhGABA and PHG. from source
- Who licenses Phenibut as a medicine?
- The State Agency of Medicines of Latvia licenses Phenibut for human use. from source
Sources and notes
- Calculated valuescomputedPubChemComputed from the structure, so no laboratory conditions apply; complexity is PubChem's own structural score.
- Hazard labelfrom sourceECHA via PubChemThe label combines these classifications.
- ECHAfrom sourceAttributionSource: European Chemicals Agency, echa.europa.eu.
- Data refreshedfrom sourceMoleculeFinder2026-11-09
Keep exploring
More related molecules
- Phenylacetic acid Both carry a carboxylic acid group.
- Phenylalanine Both carry a carboxylic acid and an amine group.
Sources and notes
- Similar in shapecomputedRDKit Morgan/TanimotoNeighbours by structural fingerprint; the sentence names the chemical groups the two share.
- The drawingscomputedPubChem structures, drawn by RDKit