CAS No. 218156-96-8

Batch: Purity:99.9
SRPIN340 Chemical Structure
Chemical Structure
Check the SRPIN340 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name N-[2-piperidin-1-yl-5-(trifluoromethyl)phenyl]pyridine-4-carboxamide
CAS Number 218156-96-8
Molecular Formula

C18H18F3N3O

Molecular Weight (MW) 349.35
SMILES C1CCN(CC1)C2=C(C=C(C=C2)C(F)(F)F)NC(=O)C3=CC=NC=C3
InChIKey DWFGGOFPIISJIT-UHFFFAOYSA-N

Ordering Information

Biological Activity

SRPIN340 is a selective ATP-competitive serine/arginine-rich protein kinase inhibitor that targets SRPK1 while exhibiting no significant inhibition across a broad panel of other protein kinases. By suppressing SRPK1 activity, SRPIN340 blocks downstream phosphorylation of serine/arginine-rich splicing factors, disrupting precursor mRNA alternative splicing pathways. This pathway modulation ultimately suppresses downstream phenotypes including viral propagation and tumor-associated angiogenesis. [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 70 mg/mL (200.37 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 70 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).

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