CAS No. 143388-64-1

Batch: Purity:99.99
Naratriptan HCl Chemical Structure
Chemical Structure
Check the Naratriptan HCl product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name N-methyl-2-[3-(1-methylpiperidin-4-yl)-1H-indol-5-yl]ethanesulfonamide;hydrochloride
CAS Number 143388-64-1
Molecular Formula

C17H25N3O2S.HCl

Molecular Weight (MW) 371.93
SMILES CNS(=O)(=O)CCC1=CC2=C(C=C1)NC=C2C3CCN(CC3)C.Cl
InChIKey AWEZYKMQFAUBTD-UHFFFAOYSA-N

Biological Activity

Naratriptan HCl is a triptan derivative and a selective 5-hydroxytryptamine 1 (5-HT1) receptor agonist, exhibiting high selectivity for 5-HT1B and 5-HT1D receptor subtypes. Activation of these presynaptic receptors inhibits adenylate cyclase activity and suppresses the release of vasoactive neuropeptides from trigeminal nerve terminals. This functional inhibition attenuates neurogenic inflammation and promotes cranial vasoconstriction, effectively suppressing migraine-associated nociceptive signaling pathways.

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 74 mg/mL (198.96 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water 8 mg/mL
Ethanol 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).
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Note: Technical data last updated: Sep 1, 2026.