N-Ethyl-N-(3-sulfopropyl)-m-anisidine sodium
Based on 1 Customer Validation
N-Ethyl-N-(3-sulfopropyl)-m-anisidine sodium (ESPA) is a Trinder's reagent and a highly water-soluble aniline derivative. N-Ethyl-N-(3-sulfopropyl)-m-anisidine sodium has a relatively high absorption wavelength at 540 nm and can be widely used in diagnostic tests and biochemical experiments.
For research use only. We do not sell to patients.
- Purity: 99.90%
- CAS No.: 82611-88-9
- Formula: C12H18NNaO4S
- Molecular Weight:295.33
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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
N-Ethyl-N-(3-sulfopropyl)-m-anisidine sodium can be used for the detection of glycerol content. Catalyzed by peroxidase (POD), N-Ethyl-N-(3-sulfopropyl)-m-anisidine sodium can undergo a coupling reaction with hydrogen peroxide and 4-aminoantipyrine to produce a purple dye. The amount of the purple dye generated is related to the initial content of glycerol in the system. By measuring the absorbance of the purple dye at a specific wavelength (540 nm) using colorimetry, the concentration of glycerol can be indirectly determined[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. 82611-88-9
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Appearance Solid
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Molecular Weight 295.33
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Formula C12H18NNaO4S
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Color White to gray
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SMILES
O=S(CCCN(CC)C1=CC=CC(OC)=C1)(O[Na])=O
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Synonyms
ESPA
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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
H2O : ≥ 100 mg/mL (338.60 mM)
* "≥" means soluble, but saturation unknown.
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.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
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.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
For the following dissolution methods, please prepare the working solution directly:
It is recommended to prepare fresh solutions and use them promptly within a short period of time.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: PBS
Solubility: 100 mg/mL (338.60 mM); Clear solution; Need ultrasonic
Purity & Documentation
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Data Sheet (272 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 (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 |
|---|---|---|---|---|---|
| H2O | 1 mM | 3.3860 mL | 16.9302 mL | 33.8604 mL | 84.6511 mL |
| 5 mM | 0.6772 mL | 3.3860 mL | 6.7721 mL | 16.9302 mL | |
| 10 mM | 0.3386 mL | 1.6930 mL | 3.3860 mL | 8.4651 mL | |
| 15 mM | 0.2257 mL | 1.1287 mL | 2.2574 mL | 5.6434 mL | |
| 20 mM | 0.1693 mL | 0.8465 mL | 1.6930 mL | 4.2326 mL | |
| 25 mM | 0.1354 mL | 0.6772 mL | 1.3544 mL | 3.3860 mL | |
| 30 mM | 0.1129 mL | 0.5643 mL | 1.1287 mL | 2.8217 mL | |
| 40 mM | 0.0847 mL | 0.4233 mL | 0.8465 mL | 2.1163 mL | |
| 50 mM | 0.0677 mL | 0.3386 mL | 0.6772 mL | 1.6930 mL | |
| 60 mM | 0.0564 mL | 0.2822 mL | 0.5643 mL | 1.4109 mL | |
| 80 mM | 0.0423 mL | 0.2116 mL | 0.4233 mL | 1.0581 mL | |
| 100 mM | 0.0339 mL | 0.1693 mL | 0.3386 mL | 0.8465 mL |
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.