CAS No. 1253491-42-7

Batch: Purity:99.65
SP141 Chemical Structure
Chemical Structure
Check the SP141 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 6-methoxy-1-naphthalen-1-yl-9H-pyrido[3,4-b]indole
CAS Number 1253491-42-7
Molecular Formula

C22H16N2O

Molecular Weight (MW) 324.38
SMILES COC1=CC2=C(C=C1)NC3=C2C=CN=C3C4=CC=CC5=CC=CC=C54
InChIKey AABFWJDLCCDJJN-UHFFFAOYSA-N

Ordering Information

Biological Activity

SP141 is a synthetic MDM2 inhibitor that promotes MDM2 auto-ubiquitination and proteasomal degradation. By directly targeting MDM2, it decreases MDM2 protein expression and suppresses downstream oncogenic signaling pathways. This activity inhibits human pancreatic cancer cell proliferation with IC50 values ranging from 0.38 tothrough a p53-independent pathway, ultimately attenuating tumor growth and colony formation.

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 65 mg/mL (200.38 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 65 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.