CAS No. 2380-86-1

Batch: Purity:98.42
6-Hydroxyindole Chemical Structure
Chemical Structure
Check the 6-Hydroxyindole product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 1H-indol-6-ol
CAS Number 2380-86-1
Molecular Formula

C8H7NO

Molecular Weight (MW) 133.15
SMILES OC1=CC2=C(C=C[NH]2)C=C1
InChIKey XAWPKHNOFIWWNZ-UHFFFAOYSA-N

Ordering Information

Biological Activity

6-Hydroxyindole is an endogenous small-molecule compound that acts as an inhibitor of organic anion transporting polypeptide 1B1 (OATP1B1). OATP1B1 is an essential hepatic uptake transporter responsible for mediating the clearance of various endogenous metabolites and drugs from portal circulation into hepatocytes. Inhibition of OATP1B1 disrupts transporter-mediated hepatic uptake, impacting cellular drug transport and endogenous clearance 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 27 mg/mL (202.77 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 27 mg/mL
Water Insoluble
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.