CAS No. 128-62-1

Batch: Purity:98.31
Noscapine Chemical Structure
Chemical Structure
Check the Noscapine product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 128-62-1
Molecular Formula

C22H23NO7

Molecular Weight (MW) 413.42

Ordering Information

Biological Activity

Noscapine is an opium poppy-derived alkaloid that acts as a tubulin-binding agent and microtubule modulator. By binding directly to tubulin, noscapine alters microtubule assembly dynamics without significantly altering the total tubulin polymer mass. This structural perturbation disrupts mitotic spindle formation, leading to cell cycle arrest at the M phase and activating downstream apoptotic pathways to suppress tumor cell proliferation. [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 83 mg/mL (200.76 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 7 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.