Azure B
Based on 1 Customer Validation
Azure B is a cationic dye and the major metabolite of Methylene blue. Azure B is used in making Azure eosin stains for blood smear staining. Azure B is a high-potency, selective and reversible inhibitor of monoamine oxidases (MAO)-A, with IC50s of 11 and 968 nM for recombinant human MAO-A and MAO-B, respectively. Azure B possesses significant antidepressant-like effects.
For research use only. We do not sell to patients.
- Purity: 99.87%
- CAS No.: 531-55-5
- Formula: C15H16ClN3S
- Molecular Weight:305.83
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Storage:
4°C, sealed storage, away from moisture and light
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)
Biological Activity
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 531-55-5
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Appearance Solid
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Molecular Weight 305.83
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Formula C15H16ClN3S
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Color Dark gray to black
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SMILES
CNC1=CC2=[S+]C3=C(C=CC(N(C)C)=C3)N=C2C=C1.[Cl-]
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Synonyms
Azure B chloride
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
4°C, sealed storage, away from moisture and light
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)
Solvent & Solubility
DMSO : 10 mg/mL (32.70 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 (sealed storage, away from moisture and 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 (sealed storage, away from moisture and 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
[1]. Löhr W,et al. The azure dyes: their purification and physicochemical properties. II. Purification of azure B. Stain Technol. 1975 May;50(3):149-56. [Content Brief]
[2]. Delport A, et al. Azure B and a synthetic structural analogue of methylene blue, ethylthioninium chloride, present with antidepressant-like properties. Life Sci. 2014 Nov 11;117(2):56-66. [Content Brief]
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 (sealed storage, away from moisture and 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 | 3.2698 mL | 16.3490 mL | 32.6979 mL | 81.7448 mL |
| 5 mM | 0.6540 mL | 3.2698 mL | 6.5396 mL | 16.3490 mL | |
| 10 mM | 0.3270 mL | 1.6349 mL | 3.2698 mL | 8.1745 mL | |
| 15 mM | 0.2180 mL | 1.0899 mL | 2.1799 mL | 5.4497 mL | |
| 20 mM | 0.1635 mL | 0.8174 mL | 1.6349 mL | 4.0872 mL | |
| 25 mM | 0.1308 mL | 0.6540 mL | 1.3079 mL | 3.2698 mL | |
| 30 mM | 0.1090 mL | 0.5450 mL | 1.0899 mL | 2.7248 mL |