CAS No. 115-39-9
Batch:
Purity:99.79
Chemical Structure
Check the
Bromophenol Blue
product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.
| CAS Number | 115-39-9 | |
|---|---|---|
| Molecular Formula |
C19H10Br4O5S |
|
| Molecular Weight (MW) | 669.96 |
Bromophenol blue is an acid phthalein dye and pH indicator that interacts with mammalian serum albumins and selectively accumulates within experimental tumor tissues. Binding to serum albumin results in spectral shifts and partially displaces bound bilirubin through competitive site sharing. Additionally, its selective uptake in rat glioma models allows clear intraoperative visualization and distinct demarcation of brain tumor margins.[1][2]
|
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 |
100 mg/mL
(149.26 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
| Ethanol | 33 mg/mL |
| Water | 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.