CAS No. 1154-25-2
Batch:
Purity:99.77
Chemical Structure
Check the
EIPA (L593754)
product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.
Chemical Information
| IUPAC Name | 3-amino-6-chloro-N-(diaminomethylidene)-5-[ethyl(propan-2-yl)amino]pyrazine-2-carboxamide | |
|---|---|---|
| CAS Number | 1154-25-2 | |
| Molecular Formula |
C11H18ClN7O |
|
| Molecular Weight (MW) | 299.76 | |
| SMILES | CCN(C(C)C)C1=C(Cl)N=C(C(=N1)N)C(=O)NC(N)=N | |
| InChIKey | QDERNBXNXJCIQK-UHFFFAOYSA-N |
Biological Activity
EIPA (L593754) is a cell-permeable inhibitor of sodium-hydrogen exchangers (NHE) and a benchmark inhibitor of macropinocytosis. By inhibiting Na+/H+ exchange across the plasma membrane, EIPA lowers submembranous intracellular pH and impairs the activation of small GTPases such as Rac1 and Cdc42. This inhibition prevents actin-dependent membrane ruffling and macropinosome closure, thereby blocking macropinocytic nutrient internalisation and downstream metabolic pathways in cancer cells. [1][2]
How to Prepare Stock Solution?
|
Concentration
Volume
Mass
|
|---|
Solubility
Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
| Solvent | Solubility & Note |
|---|---|
| DMSO |
60 mg/mL
(200.16 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
| Ethanol | 30 mg/mL |
| Water | 2 mg/mL |
| DMSO |
60 mg/mL
(200.16 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
| Ethanol | 60 mg/mL |
| Water | Insoluble |
| DMSO |
60 mg/mL
(200.16 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
| Water | Insoluble |
| Ethanol | Insoluble |
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).
Pre-aliquoted for Longevity: Solid-state aliquots offer longer shelf life compared to stock solutions.
Looking for a specific aliquot size? Contact your local sales representative or orders@selleckchem.com.
Reference
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Note: Technical data last updated: Sep 1, 2026.