2D Structure
loading...
2D chemical structural formula diagram.
3D Structure
loading...
This 3D model represents a theoretically simulated conformation and is for reference only.
Check the
Ethidium bromide
product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.
| IUPAC Name | 5-ethyl-6-phenylphenanthridin-5-ium-3,8-diamine bromide | |
|---|---|---|
| CAS Number | 1239-45-8 | |
| Molecular Formula |
C21H20N3.Br |
|
| Molecular Weight (MW) | 394.31 | |
| SMILES | CC[N+]1=C2C=C(C=CC2=C3C=CC(=CC3=C1C4=CC=CC=C4)N)N.[Br-] | |
| InChIKey | ZMMJGEGLRURXTF-UHFFFAOYSA-N |
|
Concentration
Volume
Mass
|
1 mg | 5 mg | 10 mg |
|---|
Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
| Solvent | Solubility & Note |
|---|---|
| DMSO |
78 mg/mL
(197.81 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
| Water | 7 mg/mL |
| Ethanol | 1 mg/mL |
| DMSO |
79 mg/mL
(200.34 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
| Water | 4 mg/mL |
| 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).
Note: Technical data last updated: Sep 1, 2026.