| Items | Specifications |
| Product Name | 2AD 5AD |
| Purity | 99% |
| Specification | 10 vials per box |
| Appearance | White Powder |
Overview
Zhengyineng is a trusted supplier of high-purity research-grade biochemical products, and the 2AD & 5AD series are among our flagship offerings tailored for advanced scientific research and experimental applications. Manufactured under strict quality control protocols and ISO-compliant production standards, these products are produced using state-of-the-art synthesis and purification technologies, ensuring a verified purity of 99% or higher via high-performance liquid chromatography (HPLC). This introduction provides a comprehensive overview of the specifications, key advantages, applications, and quality assurance measures for our 2AD & 5AD products, designed to meet the rigorous demands of researchers, laboratories, and scientific institutions worldwide.
Product Specifications
| Item | Specification |
| Product Name | 2AD / 5AD |
| Purity | ≥99% (HPLC verified) |
| Appearance | White powder |
| Package | 10 vials per box (sterile glass vials, vacuum-sealed) |
| Form | Lyophilized/freeze-dried powder |
| Solubility | Soluble in sterile water, 0.9% saline, and common laboratory buffers |
| Storage Conditions | Long-term: -20°C in a dry, dark environment; Short-term: 2-8°C for up to 3 months |
| Shelf Life | 24 months under recommended storage conditions |
| Quality Documentation | HPLC purity reports, mass spectrometry (MS) verification, and Certificate of Analysis (COA) provided per batch |
The white powder form of 2AD and 5AD is optimized for stability and long-term storage. Freeze-drying removes moisture without compromising molecular integrity, preventing degradation caused by hydrolysis, oxidation, or microbial contamination. Each vial is individually sealed in sterile glass packaging, ensuring the product remains uncontaminated until use. The 10-vial per box configuration is designed for research workflows, allowing for multiple experiments while minimizing waste and reducing the risk of repeated freeze-thaw cycles that can damage product stability.
Key Features and Advantages
1. Uncompromising Purity and Consistency
With a verified purity of 99%, our 2AD and 5AD products meet the highest standards for research-grade materials. Impurities, including residual solvents, synthesis byproducts, and truncated molecular sequences, are minimized through rigorous purification processes, ensuring experimental results are not skewed by contaminants. Every batch undergoes comprehensive testing via HPLC and mass spectrometry, with detailed certificates of analysis provided to confirm purity, identity, and concentration. This level of consistency is critical for reproducible research, allowing scientists to rely on these products for long-term studies and comparative experiments.
2. Optimized Stability and Storage Performance
Compared to liquid formulations, the freeze-dried powder form of 2AD and 5AD offers superior stability. Lyophilization reduces molecular mobility, slowing down degradation pathways such as deamidation, oxidation, and aggregation. When stored at -20°C in a dry, dark environment, the products maintain their chemical and biological integrity for up to 24 months, eliminating the need for frequent reordering and reducing the risk of experimental failure due to degraded reagents. For short-term use, the products remain stable at 2-8°C for up to 3 months, providing flexibility for laboratory workflows.
3. Versatile Solubility and Compatibility
2AD and 5AD exhibit excellent solubility in a range of aqueous solutions, including sterile water, 0.9% sodium chloride (saline), phosphate-buffered saline (PBS), and other common laboratory buffers. This versatility allows researchers to tailor the solvent system to their specific experimental needs, whether for in vitro cell culture, in vivo animal studies, or biochemical assays. The products are compatible with standard laboratory protocols and can be easily reconstituted to the desired concentration without compromising activity, making them suitable for a wide variety of research applications.
4. Rigorous Quality Control and Safety Standards
At Zhengyineng, quality control is integrated into every stage of the production process, from raw material sourcing to final packaging. All raw materials are tested for purity and identity before use, and synthesis is performed in controlled environmental conditions to prevent contamination. Post-production testing includes HPLC for purity, mass spectrometry for molecular weight verification, and endotoxin testing to ensure the products meet safety standards for biological research. Each batch is accompanied by a detailed COA, providing full transparency into the product’s quality parameters. Additionally, the packaging is designed to protect the products from light, moisture, and physical damage during shipping, ensuring they arrive in optimal condition.
Research Applications
Our 2AD and 5AD products are intended for research use only and are not approved for human or veterinary diagnostic or therapeutic applications. However, their unique chemical properties make them valuable tools in several key research areas:
1. Steroid and Hormone Metabolism Research
2AD and 5AD are widely used in studies of steroidogenesis and hormone metabolism, allowing researchers to investigate the biosynthetic pathways of androgens and their metabolites. Their well-defined chemical structures make them ideal for studying enzyme-substrate interactions, metabolic conversion rates, and the biological activity of specific steroid derivatives. This research contributes to a better understanding of hormonal regulation and related physiological processes.
2. Cell Biology and Signaling Pathway Studies
In cell biology research, these compounds are used to probe cellular signaling pathways regulated by steroid hormones, including cell proliferation, differentiation, and apoptosis. By interacting with specific nuclear receptors, 2AD and 5AD can modulate gene expression and cellular function, making them useful tools for investigating the mechanisms of hormone action in various cell types.
3. Pharmacological and Toxicological Research
2AD and 5AD serve as model compounds for evaluating the pharmacological and toxicological effects of steroid derivatives in preclinical research. They are used in studies to assess bioavailability, metabolism, and potential side effects, providing critical data for the development of novel therapeutic agents and safety assessments of related compounds.
4. Analytical Chemistry and Method Development
Due to their well-characterized structures and high purity, 2AD and 5AD are commonly used as reference standards in analytical chemistry. They are essential for developing and validating HPLC, GC-MS, and LC-MS methods for the detection and quantification of steroids in biological samples, supporting research in clinical diagnostics, anti-doping testing, and environmental analysis.
Reconstitution and Handling Guidelines
To ensure optimal performance and preserve the integrity of 2AD and 5AD, proper reconstitution and handling are essential:
- Preparation: Before reconstitution, centrifuge the vial briefly to collect all powder at the bottom, preventing loss of material when opening.
- Solvent Selection: Choose an appropriate solvent based on your experimental needs. For most applications, sterile water or 0.9% saline is recommended. Avoid using buffers with high salt concentrations or extreme pH values unless specified in your protocol.
- Reconstitution: Slowly add the desired volume of solvent to the vial, taking care not to introduce air bubbles. Gently swirl the vial to dissolve the powder; do not vortex vigorously, as this can cause foaming and denaturation.
- Aliquoting: After reconstitution, divide the solution into small aliquots to avoid repeated freeze-thaw cycles. Store aliquots at -20°C for long-term use.
- Safety Precautions: Wear appropriate personal protective equipment (gloves, lab coat, safety glasses) when handling the products. Dispose of unused material and contaminated waste according to institutional safety guidelines.
Shipping and Delivery
Zhengyineng is committed to ensuring that 2AD and 5AD are delivered safely and efficiently to customers worldwide. All orders are shipped using temperature-controlled packaging when necessary, with tracking information provided for full visibility of the delivery process. We offer multiple shipping options, including DHL, FedEx, and EMS, to meet different delivery timelines and budget requirements. For international orders, we provide all necessary documentation, including commercial invoices, customs declarations, and COAs, to facilitate smooth customs clearance. Our customer support team is available to assist with shipping inquiries and address any concerns related to delivery.
Conclusion
Zhengyineng’s 2AD and 5AD products are reliable, high-quality solutions for research laboratories seeking consistent, pure biochemical reagents. With their 99% purity, optimized freeze-dried formulation, and rigorous quality control standards, these products are designed to support reproducible research across a wide range of scientific disciplines. Whether you are studying steroid metabolism, cell signaling, pharmacology, or analytical chemistry, 2AD and 5AD offer the performance and reliability you need to advance your research goals. We are dedicated to providing exceptional products and support to the global scientific community, ensuring that researchers have access to the tools they need to drive innovation and discovery.
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