4-(4-Nitrophenylazo)resorcinol
Based on 1 Customer Validation
4-(4-Nitrophenylazo)resorcinol (Azo Violet) is an azo purple dye used experimentally as a pH indicator, showing yellow when the pH value is lower than 11 and purple when the pH value is higher than 13. In slightly alkaline or alkaline environments, it also turns dark blue in the presence of magnesium salts. Azo Violet can also be used to test for the presence of ammonium ions. The color of the ammonium chloride or ammonium hydroxide solution will change depending on the concentration of azo violet used.
For research use only. We do not sell to patients.
- CAS No.: 74-39-5
- Formula: C12H9N3O4
- Molecular Weight:259.22
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Storage:
4°C, protect from light
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Help & FAQs
Biological Activity
4-(4-Nitrophenylazo)resorcinol is a nitro-containing azo dye-type pH indicator that can be rapidly reduced, decolorized and degraded catalyzed by green-synthesized gold/silver nanoparticles in the presence of NaBH4[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 74-39-5
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Appearance Solid
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Molecular Weight 259.22
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Formula C12H9N3O4
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Color Purple to purplish red
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SMILES
OC1=CC=C(C(O)=C1)/N=N/C2=CC=C(C=C2)[N+]([O-])=O
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Synonyms
Azo Violet; Magneson I
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
4°C, protect from light
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
Solvent & Solubility
DMSO : 5.83 mg/mL (22.49 mM; ultrasonic and warming and heat to 60°C; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Purity & Documentation
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Data Sheet (271 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 3.8577 mL | 19.2886 mL | 38.5773 mL | 96.4432 mL |
| 5 mM | 0.7715 mL | 3.8577 mL | 7.7155 mL | 19.2886 mL | |
| 10 mM | 0.3858 mL | 1.9289 mL | 3.8577 mL | 9.6443 mL | |
| 15 mM | 0.2572 mL | 1.2859 mL | 2.5718 mL | 6.4295 mL | |
| 20 mM | 0.1929 mL | 0.9644 mL | 1.9289 mL | 4.8222 mL |
4-(4-Nitrophenylazo)resorcinol Related Classifications
HY-D0228 Related Classifications
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