CAS No. 621-23-8

Batch: Purity:99.39
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1,3,5-Trimethoxybenzene Chemical Structure
Chemical Structure
Check the 1,3,5-Trimethoxybenzene product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 621-23-8
Molecular Formula

C9H12O3
Molecular Weight (MW) 168.19
SMILES COC1=CC(=CC(=C1)OC)OC

Biological Activity

1,3,5-Trimethoxybenzene is a xenobiotic compound and human metabolite that serves as a potential biomarker for dietary flavonoid intake. As a methylated derivative of phloroglucinol, it is generated during the biotransformation and microbial breakdown of complex polyphenols in the gut. Evaluation of this circulating and urinary metabolite aids in understanding flavonoid bioavailability, metabolic clearance, and downstream xenobiotic processing pathways. [1][2]

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 34 mg/mL (202.15 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).

Reference

[1] Manach C, et al. Am J Clin Nutr. 2004;79(5):727-47.

[2] Manach C, et al. Am J Clin Nutr. 2005;81(1 Suppl):230S-242S.

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