2D Structure
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2D chemical structural formula diagram.
3D Structure
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This 3D model represents a theoretically simulated conformation and is for reference only.
Check the
PHPS1
product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.
| IUPAC Name | 4-[[5-(4-nitrophenyl)-3-oxo-2-phenyl-1H-pyrazol-4-yl]diazenyl]benzenesulfonic acid | |
|---|---|---|
| CAS Number | 314291-83-3 | |
| Molecular Formula |
C21H15N5O6S |
|
| Molecular Weight (MW) | 465.44 | |
| SMILES | O[S](=O)(=O)C1=CC=C(N\N=C2/C(=O)N(N=C2C3=CC=C(C=C3)[N+]([O-])=O)C4=CC=CC=C4)C=C1 | |
| InChIKey | IYPHPQODKSHEHV-UHFFFAOYSA-N |
|
Concentration
Volume
Mass
|
|---|
Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
| Solvent | Solubility & Note |
|---|---|
| DMSO |
93 mg/mL
(199.81 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
| Ethanol | 93 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.