CAS No. 303-07-1

Batch: Purity:99.87
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2,6-Dihydroxybenzoic acid Chemical Structure
Chemical Structure
Check the 2,6-Dihydroxybenzoic acid product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 2,6-dihydroxybenzoic acid
CAS Number 303-07-1
Molecular Formula

C7H6O4
Molecular Weight (MW) 154.12
SMILES C1=CC(=C(C(=C1)O)C(=O)O)O
InChIKey AKEUNCKRJATALU-UHFFFAOYSA-N

Ordering Information

Biological Activity

2,6-Dihydroxybenzoic acid (γ-resorcylic acid) is a phenolic acid derivative that displays low antioxidant capacity and weak free radical scavenging activity in DPPH radical reduction assays. Unlike other dihydroxybenzoic acid isomers, the steric configuration and intramolecular hydrogen bonding of 2,6-dihydroxybenzoic acid limit its electron-donating potential and free radical stabilization. Consequently, it exhibits weak antimicrobial growth inhibition and minimal cytoprotective effects against oxidative stress. [1]

How to Prepare Stock Solution?

Concentration Volume Mass
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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 30 mg/mL (194.65 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
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.