CAS No. 79-33-4

Batch: Purity:
L-Lactic acid Chemical Structure
Chemical Structure
Check the L-Lactic acid product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name (2S)-2-hydroxypropanoic acid
CAS Number 79-33-4
Molecular Formula

C3H6O3

Molecular Weight (MW) 90.08
SMILES CC(C(=O)O)O
InChIKey JVTAAEKCZFNVCJ-REOHCLBHSA-N

Ordering Information

Biological Activity

L-Lactic acid is an endogenous metabolite that acts as an agonist of hydroxycarboxylic acid receptor 1 (HCAR1/GPR81). Activation of GPR81 by L-lactic acid inhibits adenylyl cyclase activity, leading to reduced intracellular cAMP levels and downstream suppression of lipolysis in adipocytes. Additionally, L-lactic acid functions as a key metabolic substrate and signaling molecule modulating cellular energy homeostasis. [1]

Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
FAQ
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
  • Preheat media/saline to 37°C.
  • Mix rapidly (pipette/vortex) upon addition.
  • For complex mixes, always add the aqueous phase last.
  • Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).
Note: Technical data last updated: Sep 1, 2026.