# L-Valine

**CAS:** 72-18-4  
**PubChem CID:** [6287](https://pubchem.ncbi.nlm.nih.gov/compound/6287)  
**Molecular formula:** C5H11NO2  
**Molar mass:** 117.15 g/mol  
**IUPAC:** (2S)-2-amino-3-methylbutanoic acid  
**SMILES:** `CC(C)[C@@H](C(=O)O)N`  
**InChIKey:** `KZSNJWFQEVHDMF-BYPYZUCNSA-N`  
**InChI:** `InChI=1S/C5H11NO2/c1-3(2)4(6)5(7)8/h3-4H,6H2,1-2H3,(H,7,8)/t4-/m0/s1`  

## Physicochemical properties

| Parameter | Value |
|---|---|
| logP (XLogP3) | -2.3 |
| PSA | 63.3 Ų |
| Hydrogen bond donors | 2 |
| Hydrogen bond acceptors | 3 |
| Rotatable bonds | 2 |
| Heavy atoms | 8 |

## 3D structure

The molecule contains 19 atoms connected by 18 chemical bonds. Interactive 3D model available at: https://epchems.online/molekula/72-18-4/

## Synonyms

- L-valine
- valine
- 72-18-4
- (S)-Valine
- (2S)-2-amino-3-methylbutanoic acid
- (S)-2-Amino-3-methylbutanoic acid
- 2-Amino-3-methylbutyric acid
- (S)-2-Amino-3-methylbutyric acid
- valina
- L-alpha-Amino-beta-methylbutyric acid

## Available in the shop

[L-Valine](https://epchems.online/products/l-valine/)

## Data sources

- [PubChem CID 6287](https://pubchem.ncbi.nlm.nih.gov/compound/6287)
- [Wikidata](https://www.wikidata.org/wiki/Q483752)
- [NIST WebBook](https://webbook.nist.gov/cgi/cbook.cgi?ID=72-18-4)
- [ChEMBL](https://www.ebi.ac.uk/chembl/g/#search_results/all/query=72-18-4)

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*Last updated: 2026-09-23 · Generator: MOL-GOD v3.12.33*