CAS No. 103429-32-9
Batch:
Purity:99.68
Chemical Structure
Check the
CTAP
product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.
| CAS Number | 103429-32-9 | |
|---|---|---|
| Molecular Formula |
C51H69N13O11S2 |
|
| Molecular Weight (MW) | 1104.31 |
CTAP is a potent, blood–brain barrier penetrant antagonist of the μ opioid receptor (IC50 3.5 nM) displaying over 1200-fold selectivity over δ opioid and somatostatin receptors. By selectively blocking μ opioid receptor signaling, CTAP modulates downstream neuronal pathways. It exhibits anti-dyskinetic potential and is widely utilized to study L-DOPA-induced dyskinesia, opiate addiction, and opioid toxicity.
|
Concentration
Volume
Mass
|
|---|
Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
| Solvent | Solubility & Note |
|---|---|
| DMSO |
100 mg/mL
(90.55 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
| Ethanol | 100 mg/mL |
| Water | 50 mg/mL |
| DMSO |
100 mg/mL
(90.55 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
| Ethanol | 100 mg/mL |
| Water | 50 mg/mL |
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.