Tralopyril
Based on 1 Customer Validation
Tralopyril is an orally active, blood-brain barrier-penetrating antifouling insecticide and endocrine disruptor. By interfering with the thyroid hormone system and mitochondrial oxidative phosphorylation, Tralopyril downregulates the transcription of genes such as TRHR, Nkx2.1, TRα and induces ferroptosis. Tralopyril disrupts amino acid, energy and lipid metabolism, exhibits significant skeletal and reproductive toxicity, and causes developmental damage. Tralopyril has a long half-life in vivo and wide tissue distribution, posing potential risks to aquatic organisms and human health. Tralopyril shows species specificity in in vitro liver microsomal metabolism, exerts lethal effects on target insects and laboratory animals, and is commonly used in studies of chlorfenapyr poisoning and related toxic mechanisms.
Nur für Forschungszwecke. Wir verkaufen nicht an Patienten.
- Reinheit : 99.70%
- CAS. Nr.: 122454-29-9
- Formel: C12H5BrClF3N2
- Molecular Weight:349.53
-
Speicherung: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]
-
Biologische Aktivität
-
Chemical Information
-
Lösungsmittel & Löslichkeit
- Protokoll
- Reinheit & Dokumentation
- Verweise
-
Help & FAQs
Biologische Aktivität
Beschreibung
In Vitro
Tralopyril potently inhibits growth, ATP production, and effective quantum yield in Chlamydomonas reinhardtii cells[1].
Tralopyril (200 μM; 0, 5, 15, 30, 45, 60 min) exhibits low metabolic clearance in human and monkey liver microsomes, moderate clearance in mouse, rat, and dog liver microsomes, with interspecies differences in in vitro metabolic stability[3].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only. Further protocols information, click here.
In Vivo
Tralopyril (45 mg/kg; p.o.), the in vivo metabolite of chlorfenapyr, has a significantly longer half-life (5.39 h), higher AUC0-t, and higher Cmax than chlorfenapyr, and it distributes widely across all mouse tissues including the brain[3].
Tralopyril (27 mg/kg; p.o.; single dose) has an oral LD50 of 27 mg/kg in male rats, indicating acute lethal toxicity via this route[4].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
-
Animal Model:BALB/c (male, 8-9 weeks old, 22-25 g, SPF-grade)[3]
-
Dosage:45 mg/kg (generated in vivo via metabolic conversion of chlorfenapyr)
-
Administration:p.o.
-
Result:Exhibited a half-life of 5.39 h, area under the curve (AUC(0-t)) of 15912.77 μg/L*h, peak concentration (Cmax) of 4212.48 μg/L, and time to peak concentration (Tmax) of 0.42 h.
Was widely distributed across all tested tissues (heart, liver, spleen, lung, kidney, brain, skeletal muscle, stomach, intestine, plasma), including crossing the blood-brain barrier.
Was cleared more slowly than chlorfenapyr, with detectable levels in most tissues for up to 24 hours post-administration.
Chemical Information
-
CAS. Nr. 122454-29-9
-
Appearance Solid
-
Molecular Weight 349.53
-
Formel C12H5BrClF3N2
-
Color White to off-white
-
SMILES
C1=C(C=CC(=C1)Cl)C2=C(C#N)C(=C(C(F)(F)F)N2)Br
-
Versand
Room temperature in continental US; may vary elsewhere.
-
Speicherung
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Lösungsmittel & Löslichkeit
In Vitro:
DMSO : 8.75 mg/mL (25.03 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. 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.
Konzentration (Stammlösung) × Volumen (Stammlösung) = Konzentration (Ziellösung) × Volumen (Ziellösung)
In Vivo:
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: ≥ 1 mg/mL (2.86 mM); Clear solution
This protocol yields a clear solution of ≥ 1 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (10.0 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.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:
-
-
-
-
Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
-
%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
-
%+
-
+%Tween-80 + +
-
%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.
Protokoll
-
Kinase activity and phosphorylation assays
Kinase activity assays measure the ability of kinases to transfer phosphate groups from ATP to specific substrates, while phosphorylation assays detect the presence and levels of phosphorylated proteins. Common methods include radiolabeled ATP incorporation (e. g. ,), ADP release detection via bioluminescence (e. g. ,[3]), enzyme-linked immunosorbent assays (ELISA) for phospho-specific epitopes (e. g. ,[6]), and microtiter-based formats for high-throughput screening (e. g. ,[8]). The ADP-Glo assay quantifies kinase activity by measuring ADP produced during phosphorylation using a luciferase-based system. Radiometric assays involve autoradiography or scintillation counting after incorporation of 32P-labeled ATP into substrate proteins. ELISA-based approaches rely on phospho-specific antibodies to detect activated kinases in cell lysates or purified samples.
-
Reproductive and Developmental Toxicity Study
Reproductive and developmental toxicity studies detect adverse effects of prenatal or peri/postnatal exposure on maternal condition, pregnancy maintenance, embryo-fetal survival, fetal growth, structural development, and offspring reproductive or developmental endpoints; classic rat protocols generate readouts by comparing treated groups with vehicle, pair-fed, or untreated controls for implantation, resorption, fetal weight, crown-rump length, external morphology, visceral morphology, skeletal ossification, anogenital distance, nipple/areola retention, and postnatal cohort outcomes.
-
Western Blot
Western blotting (WB) is a commonly used experimental method in molecular biology, biochemistry, and immunogenetics for identifying and quantifying target proteins. It combines gel electrophoresis with immunoassay, enabling researchers to analyze protein expression, post-translational modifications, and molecular weight.
-
Research Protocol for Endocrine Diseases
Endocrine diseases often arise from disrupted hormone production, hormone signaling, or target-tissue responsiveness; for diabetes-focused endocrine disease models, insulin signaling regulates glucose uptake, hepatic glucose output, lipid metabolism, and β-cell compensation. Type 2 diabetes develops through interacting defects in insulin resistance, β-cell dysfunction, adipose inflammation, hepatic glucose overproduction, altered incretin signaling, and ectopic lipid metabolism. A major unresolved question is whether endocrine dysfunction is driven primarily by target-tissue insulin resistance, intrinsic β-cell failure, immune/inflammatory stress, or combined multi-organ failure that differs by disease stage.
-
Protocol for Pharmacokinetic Study
Pharmacokinetic studies quantify how an organism handles a drug over time through absorption, distribution, metabolism, and excretion, and the core experimental readout is the concentration-time profile of parent drug and, when relevant, metabolites in biological matrices such as plasma, whole blood, urine, bile, or tissue. Pharmacokinetic analysis links dose, route, exposure, clearance, half-life, distribution, bioavailability, and systemic exposure to drug efficacy and toxicity hypotheses rather than measuring a signaling pathway directly. The literature links pharmacokinetics to drug-development phenotypes by showing that drug metabolism and pharmacokinetics influence compound progression, exposure-response interpretation, safety margins, dosing strategy, and failure risk during discovery and development. DMPK science contributes to compound optimization by integrating physicochemical properties, in vitro metabolism, transporter behavior, in vivo exposure, and pharmacodynamic contex
-
Protocol for Kinase activity and phosphorylation assays
Kinase activity assays measure transfer of phosphate from ATP to a protein or peptide substrate, generating phosphorylated substrate, ADP, or incorporated radiolabeled phosphate as the readout; phosphorylation assays measure site-specific phosphorylation in cells or tissues as a proxy for kinase-pathway activation, inhibition, or substrate regulation. Phosphorylation can be detected by phospho-specific Western blot, immunoprecipitation kinase assay, phospho-immunofluorescence, phospho-flow cytometry, luminescent ADP detection, radiolabeled ATP incorporation, or reporter-based pathway assays, and these readouts can be applied to cancer cells, primary neurons, mouse tumors, organoids, inflammatory macrophages, ferroptosis studies, and mitophagy studies when the kinase target is biologically relevant.
-
Ferroptosis Solutions
Ferroptosis is an iron-dependent, non-apoptotic form of regulated cell death characterized by lethal lipid peroxidation and sensitivity to suppression by iron chelators or lipophilic radical-trapping antioxidants. The core pathway links cystine uptake through system Xc−, glutathione availability, GPX4-dependent detoxification of phospholipid hydroperoxides, iron-dependent oxidative reactions, and polyunsaturated-phospholipid metabolism into a cell-death program that is biochemically and morphologically distinct from apoptosis, necrosis, and autophagy. The ferroptosis pathway is experimentally linked to phenotype through chemical and genetic perturbation. Erastin induces ferroptosis by inhibiting cystine uptake through system Xc− and weakening antioxidant defenses, while GPX4 inhibition or depletion causes lipid peroxide accumulation and ferroptotic cancer-cell death. ACSL4 and oxidizable arachidonoyl- or adrenoyl-containing phosphatidylethanolamines shape ferroptosis sensitivity by con
Reinheit & Dokumentation
-
Data Sheet (277 KB)
-
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)
-
Handling Instructions (2659 KB)
Verweise
[1]. Chen X, et al. Tralopyril induces developmental toxicity in zebrafish embryo (Danio rerio) by disrupting the thyroid system and metabolism. Sci Total Environ. 2020;746:141860. [Content Brief]
[3]. Zhang S, et al. Toxicokinetics, in vivo metabolic profiling and tissue distribution of chlorfenapyr in mice. Arch Toxicol. 2024;98(11):3763-3775. [Content Brief]
[4]. Chung MJ, et al. A Fatal Case of Chlorfenapyr Poisoning and the Therapeutic Implications of Serum Chlorfenapyr and Tralopyril Levels. Medicina (Kaunas). 2022;58(11):1630. Published 2022 Nov 11. [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. 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 | 2.8610 mL | 14.3049 mL | 28.6098 mL | 71.5246 mL |
| 5 mM | 0.5722 mL | 2.8610 mL | 5.7220 mL | 14.3049 mL | |
| 10 mM | 0.2861 mL | 1.4305 mL | 2.8610 mL | 7.1525 mL | |
| 15 mM | 0.1907 mL | 0.9537 mL | 1.9073 mL | 4.7683 mL | |
| 20 mM | 0.1430 mL | 0.7152 mL | 1.4305 mL | 3.5762 mL | |
| 25 mM | 0.1144 mL | 0.5722 mL | 1.1444 mL | 2.8610 mL |
Tralopyril Related Classifications
HY-W331198 Related Classifications
Powered by Bioz