ANS
Based on 1 publication(s) in Google Scholar
ANS (8-Anilino-1-naphthalenesulfonic acid) is a competitive inhibitor targeting thyroxine binding globulin (TBG) (Ki=2.09×106 M-1). ANS is used in radioimmunoassay by displacing bound triiodothyronine (T3) to improve detection sensitivity. ANS can block the protein binding site of T3 and release free T3 for antibody recognition. As a fluorescent probe, ANS can specifically bind to the hydrophobic region of proteins (such as membrane proteins) and monitor the dynamics of protein conformation through changes in fluorescent signals. It is widely used in biochemical research and antibacterial material development.
For research use only. We do not sell to patients.
- Purity: 98.01%
- CAS No.: 82-76-8
- Formula: C16H13NO3S
- Molecular Weight:299.35
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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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Tel: 609-228-6898 E-mail: [email protected] [email protected]
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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
Publications Citing Use of MedChemExpress (MCE) ANS
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Biological Activity
Laccase-catalyzed oxidation: 8-Anilino-1-naphthalenesulfonic acid (ANS) (1-10 g/L; 24-96 h) was converted into a green antimicrobial dye (λmax=420-440 nm) by Cerrena unicolor laccase, and ANS lost fluorescence and gains antimicrobial activity[1].
Environmental toxicity:
ANS (0.019 mg/mL; 5 min) is more toxic (EC50) to Vibrio fisheri bacteria than its oxidized product (0.067 mg/mL)[1].
Cytotoxicity:
ANS (0.247-0.382 mg/mL; 24 h) inhibits the viability of colon epithelial cells and fibroblasts by LDH/MTT assay, and the oxidized product was less toxic (IC50=0.321-0.473 mg/mL)[1].
Antimicrobial activity:
ANS (0.025-0.4 mg/mL; 24 h) inhibits the growth of Staphylococcus aureus and Staphylococcus epidermidis (MIC=0.025-0.2 mg/mL), and the oxidized products showed a broader spectrum of bactericidal activity (MBC 0.1-1.0 mg/mL)[1].
Antioxidant potential:
ANS (0.027-153 μg/mL) scavenges ABTS, DPPH, and hydroxyl radicals better than its oxidized products (IC50=0.115-660 μg/mL)[1].
Protein binding assay:
ANS (1-10 μM; 30 min) binds to the hydrophobic pockets of proteins (e.g., thyroxine-binding globulin) by fluorescence enhancement and was used to detect conformational changes[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
| NCT Number | Sponsor | Condition | Start Date |
Phase
|
|---|---|---|---|---|
| NCT01329991 | Plexxikon| | 2011-05 | PHASE1 |
Chemical Information
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CAS No. 82-76-8
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Appearance Solid
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Molecular Weight 299.35
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Formula C16H13NO3S
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Color Brown to black
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SMILES
O=S(O)(C1=CC=CC2=CC=CC(NC3=CC=CC=C3)=C21)=O
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Synonyms
ANSA; 8-Anilino-1-naphthalenesulfonic acid
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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)
Publications (1)
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Journal Impact Factor
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Most Recent
Solvent & Solubility
DMSO : 50 mg/mL (167.03 mM; Need ultrasonic; 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)
Select the appropriate dissolution method based on your experimental animal and administration route.
- For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
- To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
- 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: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 2.08 mg/mL (6.95 mM); Clear solution
This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.08 mg/mL (6.95 mM); Clear solution
This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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%+
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+%Tween-80 + +
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%Saline +
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Working solution concentration: 0.22 mg/mL
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL. * In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation
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Data Sheet (283 KB)
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SDS (394 KB)
- English - EN (394 KB)
- Français - FR (394 KB)
- Deutsch - DE (394 KB)
- Norwegian - NO (394 KB)
- Español - ES (394 KB)
- Swedish - SV (394 KB)
- Italian - IT (394 KB)
- Korean - KR (394 KB)
- Portuguese - PT (394 KB)
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Handling Instructions (2659 KB)
References
[1]. Polak J, et al. Bioactive Properties of a Novel Antibacterial Dye Obtained from Laccase-Mediated Oxidation of 8-Anilino-1-naphthalenesulfonic Acid. Molecules. 2022 Jan 13;27(2):487. [Content Brief]
[2]. Brown ML, et al. Use of 8-anilino-1-naphthalenesulfonic acid in radioimmunoassay of triiodothyronine. J Pharm Sci. 1974 Aug;63(8):1214-7. [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 (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 | 3.3406 mL | 16.7029 mL | 33.4057 mL | 83.5143 mL |
| 5 mM | 0.6681 mL | 3.3406 mL | 6.6811 mL | 16.7029 mL | |
| 10 mM | 0.3341 mL | 1.6703 mL | 3.3406 mL | 8.3514 mL | |
| 15 mM | 0.2227 mL | 1.1135 mL | 2.2270 mL | 5.5676 mL | |
| 20 mM | 0.1670 mL | 0.8351 mL | 1.6703 mL | 4.1757 mL | |
| 25 mM | 0.1336 mL | 0.6681 mL | 1.3362 mL | 3.3406 mL | |
| 30 mM | 0.1114 mL | 0.5568 mL | 1.1135 mL | 2.7838 mL | |
| 40 mM | 0.0835 mL | 0.4176 mL | 0.8351 mL | 2.0879 mL | |
| 50 mM | 0.0668 mL | 0.3341 mL | 0.6681 mL | 1.6703 mL | |
| 60 mM | 0.0557 mL | 0.2784 mL | 0.5568 mL | 1.3919 mL | |
| 80 mM | 0.0418 mL | 0.2088 mL | 0.4176 mL | 1.0439 mL | |
| 100 mM | 0.0334 mL | 0.1670 mL | 0.3341 mL | 0.8351 mL |
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