SMILES:

Br.OC1=CC2=C(C=C1O)C(CC3=C4C=CC=CC4=CC=C3)NCC2
YS-49 Chemical Structure
Chemical Structure
Check the YS-49 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 1-(naphthalen-1-ylmethyl)-1,2,3,4-tetrahydroisoquinoline-6,7-diol;hydrobromide
CAS Number 132836-42-1
Molecular Formula

C20H19NO2.BrH

Molecular Weight (MW) 386.28
SMILES Br.OC1=CC2=C(C=C1O)C(CC3=C4C=CC=CC4=CC=C3)NCC2
InChIKey JXFRKNGQHAAJKY-UHFFFAOYSA-N

How to Prepare Stock Solution?

Concentration Volume Mass
🧮 Molarity Calculator

Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 77 mg/mL (199.33 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 77 mg/mL
Water 6 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.