CAS No. 149-91-7

Batch: Purity:99.90
Gallic acid Chemical Structure
Chemical Structure
Check the Gallic acid product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 3,4,5-trihydroxybenzoic acid
CAS Number 149-91-7
Molecular Formula

C7H6O5

Molecular Weight (MW) 170.12
SMILES C1=C(C=C(C(=C1O)O)O)C(=O)O
InChIKey LNTHITQWFMADLM-UHFFFAOYSA-N

Ordering Information

Biological Activity

Gallic acid is a naturally occurring phenolic acid and antioxidant compound that scavenges free radicals and modulates cellular signaling pathways. Treatment with gallic acid increases intracellular reactive oxygen species accumulation in cancer cell models, triggering mitochondrial dysfunction, caspase activation, and apoptotic cell death. Additionally, it downregulates pro-inflammatory mediators and inhibits cell proliferation through modulation of NF-kB and MAPK signaling pathways. [1]

How to Prepare Stock Solution?

Concentration Volume Mass
1 mg 5 mg 10 mg
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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 34 mg/mL (199.85 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 34 mg/mL
Water 7 mg/mL
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).

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Note: Technical data last updated: Sep 1, 2026.