Florzolotau
Florzolotau (APN1607) is a positron emission tomography (PET) ligand that can be used for the detection of Alzheimer's disease (AD) and other tau proteinopathies. Its binding sites are located in the β-sheet of paired helical filaments (PHFs) and straight filaments (SFs) of tau protein, as well as in the C-shaped cavity of SFs. In addition, APN-1607 binds to intraneuronal inclusions in Alzheimer's disease (AD), primary age-related tauopathy (PART) and posterior cortical atrophy (PCA). Florzolotau shows promise for PET imaging studies of neurological disorders, particularly tau proteinopathies.
For research use only. We do not sell to patients.
- CAS No.: 1565797-16-1
- Formula: C20H20FN3O2S
- Molecular Weight:385.46
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month
To place orders, for customer services and technical support, please contact: MedChemExpress USA
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
Biological Activity
Florzolotau (100 μM, 2.5 nmol/g tissue; 3 h at room temperature) binds to three major sites in AD-derived PHFs and SFs, with a unique third major site in SFs that induces a conformational change in the filamen[1].
Florzolotau (25 μM in 50% ethanol; 30 min at room temperature) binds to and fluorescently labels intraneuronal tau inclusions in post-mortem brain sections from AD, PCA, and PART cases, with labeling intensity correlating with tau pathology stage in PART[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 1565797-16-1
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Appearance Solid
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Molecular Weight 385.46
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Formula C20H20FN3O2S
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Color Yellow to orange
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SMILES
OC(COC1=CC=C2N=C(/C=C/C=C/C3=CC=C(NC)N=C3)SC2=C1)CF
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Synonyms
APN1607; PM-PBB3
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Solvent & Solubility
DMSO : 100 mg/mL (259.43 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. 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. 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: ≥ 2.5 mg/mL (6.49 mM); Clear solution
This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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: ≥ 2.5 mg/mL (6.49 mM); Clear solution
This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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.
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 (269 KB)
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SDS (254 KB)
- English - EN (254 KB)
- Français - FR (254 KB)
- Deutsch - DE (254 KB)
- Norwegian - NO (254 KB)
- Español - ES (254 KB)
- Swedish - SV (254 KB)
- Italian - IT (254 KB)
- Korean - KR (254 KB)
- Portuguese - PT (254 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. 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 |
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| DMSO | 1 mM | 2.5943 mL | 12.9715 mL | 25.9430 mL | 64.8576 mL |
| 5 mM | 0.5189 mL | 2.5943 mL | 5.1886 mL | 12.9715 mL | |
| 10 mM | 0.2594 mL | 1.2972 mL | 2.5943 mL | 6.4858 mL | |
| 15 mM | 0.1730 mL | 0.8648 mL | 1.7295 mL | 4.3238 mL | |
| 20 mM | 0.1297 mL | 0.6486 mL | 1.2972 mL | 3.2429 mL | |
| 25 mM | 0.1038 mL | 0.5189 mL | 1.0377 mL | 2.5943 mL | |
| 30 mM | 0.0865 mL | 0.4324 mL | 0.8648 mL | 2.1619 mL | |
| 40 mM | 0.0649 mL | 0.3243 mL | 0.6486 mL | 1.6214 mL | |
| 50 mM | 0.0519 mL | 0.2594 mL | 0.5189 mL | 1.2972 mL | |
| 60 mM | 0.0432 mL | 0.2162 mL | 0.4324 mL | 1.0810 mL | |
| 80 mM | 0.0324 mL | 0.1621 mL | 0.3243 mL | 0.8107 mL | |
| 100 mM | 0.0259 mL | 0.1297 mL | 0.2594 mL | 0.6486 mL |
Florzolotau Related Classifications
HY-137557 Related Classifications
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