GC376 acts on 3CL protease, a critical enzyme generated by coronaviruses and other RNA viruses. The compound connects to the enzyme's active pocket through reversible binding. Once attached, it prevents the protease from slicing long viral polyprotein strands into smaller, working protein segments.
When 3CL protease loses its cutting function, viruses can't create the functional proteins required for their reproduction. Lacking these key protein building blocks, viruses cannot generate new copies inside host cells. This feature makes GC376 a useful reference material for antiviral lab experiments focused on protease inhibitors.
Faithful Chemical delivers high purity GC376 powder for antiviral research applications. We provide custom packaging options, full batch COA records, adjustable bulk supply and OEM services to fit your lab trials and pre-clinical study requirements.
All batches go through strict quality checks to maintain stable performance in your tests. No matter if you need small trial samples or large bulk quantities for your research, our team can accommodate your project. Reach out to our team to request pricing and the technical datasheet.
Basic Information
GC376 is a lab-made small molecule compound, falling under bisulfite adduct prodrugs. Many virology and medicinal chemistry teams pick this material to study viral 3CL protease. Scientists run plenty of in vitro tests with it, exploring protease suppression and how positive-sense single-stranded RNA viruses replicate. This raw material forms crystals with color ranging from off-white to faint yellow. It is produced only for lab-based research work and must not be given to humans or animals.
To protect GC376's chemical features and avoid early breakdown, proper storage rules should be followed. The powder needs airtight containers and placement inside cool, dry, dark storage cabinets. Ambient moisture, oxygen and bright light can trigger chemical changes and weaken its activity. Hot spaces are not suitable for storage at all. Each opening of the container exposes the powder to air, gradually raising the chance of degradation over time. For long-term experiments, researchers may separate bulk powder into small individual portions under inert gas conditions. This method reduces frequent opening of the original large bottle, lowering risks like moisture absorption, oxidation and cross-contamination. If stored following these guidelines, GC376 can preserve its core chemical traits during the whole shelf life.
Keeping GC376 away from degradation relies on suitable storage environments, which keeps its molecular framework and biological activity unchanged. With correct preservation, researchers can observe steady 3CL protease suppression during their trials. Humidity, heat or strong light will damage this compound if stored incorrectly, cutting its active ingredient and bringing unstable or poor experimental data. That is why reliable sealed packaging and cold-chain transport matter a lot for buyers.
As an experienced bulk producer and supplier, Faithful Chemical applies unified preservation standards in warehouse management
and shipping. We provide adjustable logistics options, sealed packaging, plus cold transport services when clients need them.
Core Research Uses
Research Applications
Run enzyme tests in the lab
Research teams use GC376 as a comparison sample during enzyme tests. They check viral enzymes from different viruses and collect activity data. They also observe how enzymes react with test materials. This material serves as a common reference for virus chemistry studies.
Track virus growth in cells
Researchers add GC376 to cell tests to study some RNA viruses. It lowers the activity of the target enzyme. Scientists can then see virus changes and learn which steps matter for virus reproduction.
Discover new antiviral materials
When making new antiviral compounds, researchers compare them against GC376. They test how well these new compounds bind and block the viral enzyme. The best candidates will be selected for further chemical adjustments.
Learn about binding between molecules and enzymes
GC376 helps researchers study how small compounds stick to viral enzymes. Teams study the binding behavior of GC376. What they learn can support the creation of new antiviral small molecules.
As a professional factory and Manufacturer, Faithful Chemical is an in bulk supplier of GC376 powder. We provide bulk orders, custom packaging and OEM service, together with full COA documents to support your virology and medicinal chemistry research. Feel free to contact us for technical datasheet and quotation.
Main Application Directions
Enzyme research
Used for exploring the characteristics of 3CL protease from multiple virus strains in in-vitro lab tests.
01
Virus mechanism study
Helps researchers observe virus growth changes after suppressing 3CL protease activity at cell level.
02
Compound screening
Acts as a reference standard to evaluate the inhibition performance of newly synthesized small molecules.
03
Structural research
Provides data support for studying binding modes between small molecules and protease active sites.
04
Compound design reference
Offers a proven binding template for designing new protease inhibitor molecules.
05
Global Market Description
More labs worldwide are studying RNA viruses and creating new antiviral substances. This pushes up demand for chemicals used only in research. Many research teams and biotech companies need trusted reference samples to test protease inhibitors.
GC376 is a popular benchmark sample for 3CL protease research. Most buyers include university labs, research centers and small biotech firms working on early-stage antiviral studies. Veterinary virus research also brings steady orders for this compound.
Lab buyers across the globe care about several things when sourcing this material. They want high-purity powder, consistent quality between batches, and complete paperwork for international shipments. Safe packaging and proper transport conditions are also important for their experiments.
More teams start to search for broad-spectrum antiviral candidates. This trend increases the need for reliable reference materials such as GC376. Faithful Chemical works with global buyers. We supply stable GC376 powder to support antiviral research projects everywhere.
Core strengths
Work with Faithful Chemical for your GC376 research supply.
Reliable crystal & powder quality
Our GC376 has well-defined crystal structure with steady biological activity. It maintains stable test results during enzyme and cell experiments. The powder is off-white and free of clumping. It dissolves smoothly to prepare working solutions, suitable for various in vitro and in vivo antiviral research models.
Standardized packaging & logistics solution
We adopt light-shielded packaging materials including aluminum foil packs, HDPE containers and amber glass bottles for tight sealing. All shipments follow international logistics specifications to protect compound activity and guarantee stable quality upon arrival at your laboratory.
Customizable packaging & stable batch quality
We support small lab scale such as gram, ten-gram level and tailor-made packaging. The same production workflow and QC standards are applied for R&D samples and bulk manufacturing. It effectively avoids quality differences between trial samples and bulk orders and delivers consistent high-grade materials.
Complete & standard supporting documents
We provide complete COA, MSDS and other required supporting paperwork. Data on synthesis route, purity profile and stability test are fully documented. These materials facilitate smooth cross-border delivery for academic research and veterinary compound development projects.
Questions Buyers Ask Before Placing A Bulk Order
Conclusion
GC376 is a widely adopted research compound for investigating viral 3CL protease and related virus studies. Its reversible inhibitory feature gives it great value for virology and medicinal chemistry research.This compound can be used across multiple research directions including enzyme assays, viral mechanism exploration and inhibitor screening. When handled properly under recommended lab conditions, it can deliver stable and repeatable experimental data for your research work.
Faithful Chemical acts as an experienced bulk manufacturer and trusted supplier. We offer premium GC376 powder, batch COA certificates, complete quality files and sample support for worldwide B2B collaborators.Our GC376 powder meets international research material standards. Our pursuit of excellence, reasonable prices, and preferred superior service make us the partner for research labs and medicinal chemistry teams worldwide.
If you require GC376 powder research or production
Please contact Faithful Chemical Click
Email: allen@faithfulbio.com
WhatsApp: +86 13137770562
References
1. Kim Y, et al. Reversible inhibition of coronavirus 3CL protease by GC376, a bisulfite adduct aldehyde prodrug. *Antiviral Research*. 2018.
2. Pedersen NC. GC376 as a research tool for feline coronavirus and 3CL protease study. *Journal of Feline Medicine and Surgery*. 2020.
3. Rathnayake AD, et al. Broad-spectrum activity of GC376 against multiple coronavirus 3CL proteases. *Journal of Medicinal Chemistry*. 2021.
4. Hu Y, et al. Structural basis of GC376 binding to SARS-CoV-2 main protease. *Protein Science*. 2021.
5. Dye JM, et al. Evaluation of GC376 for cross-virus inhibition across positive-sense RNA viruses. *Virology*. 2022.
6. Burley SK, et al. Benchmarking 3CLpro inhibitor GC376 in in vitro enzyme and cell-based assays. *ACS Infectious Diseases*. 2022.
7. Vander Linden C, et al. Compound stability and assay performance of GC376 for laboratory antiviral research. *Journal of Biomolecular Screening*. 2023.