It is very important to understand the molecular design and stability factors when working with pharmaceutical intermediates and antiviral compounds. A new substance called gs-441524 powder has been found to be a powerful nucleoside equivalent that is very good at fighting viruses, especially RNA viruses. This guide looks at the complicated chemical structure of this substance and gives useful information about its stability for use in the lab.
Researchers and pharmaceutical workers who work with this substance need to know a lot about its molecular structure and how to store it. The white crystalline powder has certain structural traits that are directly linked to its biological action. If you're working with pharmaceutical synthesis, quality control, or study uses, understanding these basic points will help you handle things correctly and get the best results.
The scientific name for this molecule, 2-C-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-2,5-hydro-d-altronitrile, shows how complicated it is. Professionals can make smart choices about storage, handling, and application processes when they know how this structure turns into antiviral activity. New studies have shown that managing the compound's stability correctly has a direct effect on its healing potential.
1.General Specification(in stock)
(1)Injection
20mg, 6ml; 30mg,8ml; 40mg,10ml
(2)Tablet
25/45/60/70mg
(3)API(Pure powder)
(4)Pill press machine
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2.Customization:
We will negotiate individually, OEM/ODM, No brand, for secience researching only.
GS-441524 CAS 1191237-69-0
Analysis: HPLC, LC-MS, HNMR
We provide GS-441524, please refer to the following website for detailed specifications and product information.
What Is the Chemical Structure of GS-441524 Powder
The GS-441524 powder is made up of a modified ribose sugar part that is linked to an adenine-derived heterocyclic base. The molecule has a 1'-cyano group instead of the usual hydroxyl group found in natural nucleosides. This is a very important molecular change. The change makes the molecule more stable while keeping its ability to work with virus RNA polymerases.
Molecular Components and Functional Groups
The backbone structure is made up of three separate parts: the cyano group, the modified sugar ring, and the heterocyclic base. The nitrogen atoms in the pyrrolotriazine ring system are placed in a way that makes Watson-Crick base pairing interactions easier. These nitrogen atoms also connect with aromatic residues in enzyme active sites through π-π stacking, which makes the bond stronger.The sugar part keeps the furanose ring shape that is typical of nucleosides, but the lack of a 3'-hydroxyl group stops the chain from getting longer after it is added. This part of the design is very important for how the combination works as a chain breaker. Specifically placed hydroxyl groups allow cellular kinases to phosphorylate the molecule, which changes it into its active triphosphate form.
Stereochemistry and Spatial Arrangement
The way functional groups are arranged in three dimensions has a big effect on cellular activity. The compound's sugar part stays in a D-shape, which is the same shape as natural nucleosides found in RNA. This stereochemical accuracy makes sure that phosphorylation enzymes and cellular transport systems can recognize the compound. The way the amino group is arranged in space in relation to the sugar linkage makes a special binding pocket interaction characteristic.
Because the molecule can change shape around the glycosidic bond, it can move into positions that are better for energy within enzyme active sites. Crystal structure studies show that the molecule can exist in more than one shape state. However, biological activity is linked to certain groups of rotamers. Figuring out these preferred conformations helps guess how stable something will be in different situations and directs the development of formulation techniques.
How the Nucleoside Analogue Structure Enables Antiviral Activity
GS-441524 powder can take over the machinery for replicating viruses because its structure is similar to natural nucleotides. This molecule is recognized as a substrate by RNA-dependent RNA polymerases, which are necessary for viruses to copy their genomes. The enzyme adds the copy to new virus RNA chains, but the changed structure stops the chains from getting longer. This method stops virus replication very well without having a big effect on how host cells work.There are small changes in the structure of the active site that make virus polymerases different from cellular enzymes.
Mechanism of RNA Polymerase Inhibition
When the molecule gets into a cell, kinase enzymes phosphorylate it one step at a time to make the active triphosphate form. This molecule tries to bind to polymerase at the same time as normal adenosine triphosphate. The molecular resemblance makes binding work well, but the changed sugar part messes up the catalytic cycle. When added to RNA, the lack of a 3'-hydroxyl group stops the formation of a phosphodiester link with the next nucleotide.The cyano group at the 2' position adds to the steric hindrance, which makes the formation of the elongation complex even less stable.
Metabolic Activation Pathways
Cellular kinases speed up the process of phosphorylation, which the chemical goes through three times in a row. Adenosine kinase starts the process by adding the first phosphate group to the spot 5'-hydroxyl. Different types of cells can go through this change easily, but activation rates may be affected by tissue-specific expression patterns. The monophosphate form is then used by nucleoside monophosphate kinases as a substrate.The change to the diphosphate happens quickly, and then the triphosphate is made with the help of nucleoside diphosphate kinase.
This active metabolite builds up inside cells, making a reserve that keeps the antiviral action going. The phosphorylated forms are better at staying inside cells than the parent molecule, which means that the healing benefits last longer. Figuring out how to dose and guessing pharmacokinetic profiles are easier when you know about these metabolic changes.
GS-441524 Powder Stability Factors in Laboratory Conditions
To keep something from breaking down over time, it needs to be frozen at -20°C for a long time. If you keep it away from light and water, the substance will stay stable for years at this temperature. Freeze-thaw cycles should be kept to a minimum because frequent changes in temperature speed up the breakdown process. The best way to keep trial batches consistent is to divide samples into parts that can only be used once before freezing them.
Humidity and Moisture Control
Because hygroscopic substances attract water, controlling wetness is important for keeping the quality of compounds. The powder easily soaks up water from the air, which could start hydrolytic breakdown processes. Desiccant packs that come in storage cases help keep things dry. To keep things from breaking down because of wetness, relative humidity levels should stay below 30% in storage places.When packages are opened in controlled settings, people are less likely to be exposed to humid air. Using desiccator cabinets for tasks like handling and weighing adds to the safety. When working with large amounts, some labs use glove boxes with an artificial atmosphere. These safety measures are especially important in wet places where risks are higher because of the high amount of moisture in the air.
Light Exposure and Photodegradation
Exposure to ultraviolet and visible light can cause photochemical processes that make compounds less stable. There are chromophores in the heterocyclic base system that are sensitive to certain colors. Containers made of amber glass or aluminum foil work well to stop light from passing through. Closed drawers should be kept out of the way when not in use, and work areas should stay out of direct sunlight.Fluorescent lab lighting usually doesn't pose much of a risk when handled for short amounts of time, but long-term contact should be avoided. When working with big batches, some guidelines say to use yellow safety lights. Photostability testing in controlled light helps figure out how long something can be safely handled and how it needs to be packaged for a certain use.
Why Chemical Stability Matters for GS-441524 Powder Performance
Impact on Analytical Accuracy
When samples are broken down, they create false spots in chromatographic studies, which makes it harder to figure out how much something is. Mass analysis shows that oxidized derivatives and hydrolysis products are typical breakdown products. These pollutants can make the test not work properly, which can lead to wrong concentration estimates. The results of standard curves made from reference materials that have been tampered with are not accurate.When antiviral activity is measured by enzymes, chemical preparations that have been broken down have weaker inhibiting effects. The dose-response relationship changes, so bigger concentrations are needed to have the same benefits.
To make sure that results can be repeated, researchers must check the purity of the chemical before starting an experiment. Each batch should come with a certificate of analysis that lists the ingredients, their quality, and the best way to store them.
Regulatory and Quality Assurance Considerations
Facilities that follow Good Manufacturing Practice have strict plans in place to check the safety of pharmaceutical intermediates. Studies of accelerated stability under stressed conditions can help you guess how long a product will last in normal storage. Nucleoside analogues must meet certain tests and approval standards set by international rules.
Following these guidelines helps with regulatory applications and makes sure that products are consistent.Differences in the synthetic method or the purification protocol can cause stability qualities to vary from batch to batch. Full stability data from several production lots gives trust in the storage conditions that are suggested. Retest dates or expiration dates based on proof of steadiness help determine the right time to use something. Documentation systems keep track of how things were stored so that materials that might be damaged aren't used.
Structural Properties That Influence GS-441524 Powder Effectiveness
The chemical makeup of GS-441524 powder determines how it reacts with biological targets. The amino group on the heterocyclic base makes important hydrogen links with residues in the polymerase active site. Studies using mutagenesis show that changing these contact points makes binding much less strong. The way this functional group is placed in space in relation to the sugar bond makes the best shape for enzyme recognition.In addition to ending the chain, the cyano group has other positive benefits. This group that takes away electrons changes the electric features of atoms next to it, which affects the strength of base pairing.
Lipophilicity and Cellular Permeability
The partition coefficient of the chemical affects how quickly cells take it in and how it is distributed in tissues. Moderate lipophilicity makes passive diffusion across cell membranes easier while keeping the ability to dissolve in water for preparation reasons. Overall polarity is set by the balance between functional groups that attract water and chemical systems that repel water. If this balance is changed, the pharmacokinetic traits will change.Interactions between transport proteins may help cells build up in some areas. Nucleoside transporters can recognize structural patterns in the molecule, which might help some types of cells take it in better.
Metabolic Stability and Enzymatic Resistance
The changes made to the structure of GS-441524 powder make it resistant to some enzymes that break down materials. Adenosine deaminase usually stops adenosine mimics from working, but it doesn't work as well with this substance. The base structure of pyrrolotriazine is not the same as natural adenine enough for enzymes not to recognize it. Compared to simpler nucleoside counterparts, this property makes the compound's cellular half-life longer.Different nucleoside analogues have different phosphorylation rates based on their structural properties.
Conclusion
Understanding the chemical structure and stability needs of GS-441524 powder is important for getting the most out of this useful antiviral substance. The chemical structure, which includes a changed nucleoside framework with specific functional groups, makes it possible for it to directly fight RNA viruses. The purity of the compound is maintained, and regular performance is ensured by storing it in a way that keeps the temperature low, the humidity under control, and light out.
The complicated design of this molecule is shown by the link between its structure and its cellular function. Each part, from the amino-substituted heterocyclic base to the smart placement of the cyano group, helps the antiviral work. Researchers and people who work in the pharmaceutical industry can benefit from having a deep understanding of the stable factors that affect the quality of compounds over time.
For accurate results in experiments and therapeutic uses, keeping chemicals stable during handling and storage is very important. Stability science-based quality assurance methods protect both the purity of studies and the safety of patients. As studies into viruses continue to move forward, compounds like this one show how good design and proper treatment can work together to make useful pharmaceutical tools.
FAQ
1. What storage temperature range ensures optimal GS-441524 powder stability?
For short-term storage of days to weeks, the substance needs to be kept cool, between 0°C and 4°C. For long-term storage, the powder needs to be frozen at -20°C, where it stays safe for years at a time. To avoid freeze-thaw cycles, divide goods into aliquots that can only be used once before they are frozen. Keeping something at room temperature speeds up decline a lot, so it should only be done for short amounts of time.
2. How does the chemical structure of GS-441524 powder enable antiviral activity?
The nucleoside-equivalent structure looks like natural RNA building blocks, which lets viral polymerase enzymes use it when the virus copies itself. The changed sugar part doesn't have a 3'-hydroxyl group that is needed for chain lengthening, which stops replication. The cyano group adds more enzyme resistance and steric hindrance. This molecular structure stops the growth of viruses while having little to no effect on regular biological processes.
3. What analytical methods confirm GS-441524 powder quality and stability?
High-performance liquid chromatography with ultraviolet detection measures the purity of a substance and finds products of breakdown. Mass spectrometry checks for structural stability and confirms molecular weight. Nuclear magnetic resonance spectroscopy checks the structure of chemicals and finds flaws. Assays that show stability and are done at set times keep track of changes in quality over time. These factors are written down on certificates of analysis for each production batch. These set basic quality standards.
Partner with BLOOM TECH for Premium GS-441524 Powder Supply
You can trust BLOOM TECH as your GS-441524 powder source because they offer pharmaceutical-grade intermediates and a full quality guarantee. Our 100,000-square-meter GMP-certified production facilities meet the standards of the US FDA, the EU, Japan's PMDA, and the CFDA. This means that you can be sure that the quality of your research and development projects will not be compromised. We have been working with organic chemistry and pharmaceutical intermediates for 12 years, so we know how important it is for antiviral compounds to be chemically pure and stable.
Our triple-quality verification system-testing in the plant, analysis by an independent QA/QC department, and approval by a third party-ensures that every batch meets strict requirements. Our prices are clear, our profit margins are set, and our combined ERP platform gives us exact lead times. We've built our name on dependability, technical know-how, and service that puts the customer first. We're approved suppliers to 24 foreign pharmaceutical companies. Our committed team makes sure that all of your customs paperwork goes smoothly and that your order gets to you on time, whether you need small amounts for testing or large amounts for production.
Experience the advantage of working with a supplier who values long-term partnerships over short-term income. Talk to our knowledgeable staff about your needs for GS-441524 powder right now by emailing Sales@bloomtechz.com. Let BLOOM TECH be your go-to partner for high-quality pharmaceutical intermediates, great prices, and expert technical help throughout the entire lifecycle of your project.
References
1. Warren TK, Jordan R, Lo MK, et al. "Therapeutic efficacy of the small molecule GS-5734 against Ebola virus in rhesus monkeys." Nature. 2016;531(7594):381-385.
2. Pedersen NC, Perron M, Bannasch M, et al. "Efficacy and safety of the nucleoside analog GS-441524 for treatment of cats with naturally occurring feline infectious peritonitis." Journal of Feline Medicine and Surgery. 2019;21(4):271-281.
3. Siegel D, Hui HC, Doerffler E, et al. "Discovery and synthesis of a phosphoramidate prodrug of a pyrrolo[2,1-f][triazin-4-amino] adenine C-nucleoside (GS-5734) for the treatment of Ebola and emerging viruses." Journal of Medicinal Chemistry. 2017;60(5):1648-1661.
4. Murphy BG, Perron M, Murakami E, et al. "The nucleoside analog GS-441524 strongly inhibits feline infectious peritonitis (FIP) virus in tissue culture and experimental cat infection studies." Veterinary Microbiology. 2018;219:226-233.
5. Gordon CJ, Tchesnokov EP, Woolner E, et al. "Remdesivir is a direct-acting antiviral that inhibits RNA-dependent RNA polymerase from severe acute respiratory syndrome coronavirus 2 with high potency." Journal of Biological Chemistry. 2020;295(20):6785-6797.
6. Eastman RT, Roth JS, Brimacombe KR, et al. "Remdesivir: A review of its discovery and development leading to emergency use authorization for treatment of COVID-19." ACS Central Science. 2020;6(5):672-683.