CAS No. 25679-24-7

Batch: Purity:99.69
Check CoA
Cholecystokinin Octapeptide, desulfated Chemical Structure
Chemical Structure
Check the Cholecystokinin Octapeptide, desulfated product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 25679-24-7
Molecular Formula

C49H62N10O13S2
Molecular Weight (MW) 1063.21

Ordering Information

Biological Activity

Cholecystokinin Octapeptide, desulfated is a synthetic peptide agonist that selectively targets CCK-B receptors over CCK-A receptors due to the absence of a tyrosine sulfate group. By preferentially engaging CCK-B receptors, it modulates central nervous system signaling and gastric secretion pathways without significantly activating CCK-A-mediated pancreatic digestive enzyme secretion. Consequently, it serves as a functional probe for investigating CCK-B receptor-dependent physiological phenotypes, including satiety, anxiety, and gastric acid release. [1]

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 100 mg/mL (94.05 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water Insoluble
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).

Jump to

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