Molecular properties
- Formula
- C3H6O3
- Molar mass
- 90.08 g·mol−1
- Exact mass
- 90.0317 Da
- 1
- 2
- 3
- 57.50 Ų
- -0.7 (PubChem computed XLogP3-AA descriptor)
- CAS
- 50-21-5
- PubChem CID
- 612
Molecule record
lactic acid
C3H6O3
90.08 g/mol
Interactions
- Polarity
- Often polar; exact polarity depends on size, substitution, and ionization state.
- Acid-base behavior
- Review ionizable groups and pKa data where available; ChemForge does not infer definitive acid-base state from identity alone.
- Intermolecular forces
- Assess dispersion, dipole interactions, hydrogen bonding, and ionic character from the functional groups shown.
Functional groups
Alcohol
Carboxylic acid
Physical properties
| Property | Value | Conditions | Source |
|---|---|---|---|
| Logp | -0.7 | PubChem computed XLogP3-AA descriptor | PubChem(link only) |
Common names and synonyms
- (RS)-2-Hydroxypropionsaeure
- 2-hydroxypropanoic acid
- 2-hydroxypropionic acid
- 50-21-5
- 598-82-3
- Acidum lacticum
- Aethylidenmilchsaeure
- DL-Lactic acid
Show all 23 synonyms
- Ethylidenelactic acid
- FEMA No. 2611
- Kyselina mlecna
- Lactic acid USP
- Lactic acid, dl-
- Lacticum acidum
- Lactovagan
- Milchsaeure
- Milchsaure
- Milk acid
- Ordinary lactic acid
- Propanoic acid, 2-hydroxy-
- Racemic lactic acid
- Tonsillosan
- alpha-Hydroxypropionic acid
Structure identifiers
- Canonical SMILES
- CC(C(=O)O)O
- Isomeric SMILES
- CC(C(=O)O)O
- InChI
- InChI=1S/C3H6O3/c1-2(4)3(5)6/h2,4H,1H3,(H,5,6)
- InChIKey
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N
- PubChem CID
- 612
Spectroscopy
Tabs appear only for spectra stored with clear provenance.
Simulated FTIR trace
Predicted FTIR / %T
4 cm-1 resolution / deterministic instrument profile
Hover for cursor
Peak assignments
3350 cm−1broad O-H (simulated)
3000 cm−1broad acid O-H (simulated)
1710 cm−1C=O acid (simulated)
2960 cm−1sp3 C-H (simulated)
Simulated NMR
On-demand educational prediction for lactic acid; not experimental data.
Simulated EI mass spectrum
On-demand educational fragmentation for lactic acid; not experimental data.
Sources
Molecule identity
Retrieved 8/7/2026. Reuse status is summarized by the badge; open the source for full details.
simulated IR
ChemForge original educational simulation.