FOXO4-DRI Peptide Purity Specifications and Manufacturing Sourcing Guide for Lab Formulation
Executive Summary
FOXO4-DRI peptide is a specialized research compound primarily utilized in laboratory studies focused on cellular senescence and protein interaction pathways. This guide positions FOXO4-DRI as a high-purity reagent for advanced in vitro formulation, emphasizing its critical role in reproducible experimental outcomes. The manufacturing standard adheres to GMP-compliant protocols with rigorous HPLC and mass spectrometry verification, ensuring a minimum purity threshold of 98% to eliminate batch variability. Key quality advantages include endotoxin-free lyophilization and sterile filtration, addressing common buyer pain points such as inconsistent solubility and contamination risks. Researchers sourcing this peptide benefit from transparent certificate of analysis documentation, enabling precise dosage calculations for formulation. By prioritizing manufacturing integrity over unverified claims, this guide helps laboratories avoid substandard lots that compromise data integrity, making FOXO4-DRI a reliable tool for mechanistic studies without medical or therapeutic assertions.
Target Keyword: foxo4 dri
Core Molecular Specs & Technical Index
The foxo4-dri peptide is a synthetic cell-penetrating peptide designed for advanced laboratory research and cosmetic raw material formulation. This peptide targets the FOXO4 transcription factor, offering potential applications in senescence modulation studies. For B2B buyers, including cosmetic chemists, research labs, and bulk raw material distributors, understanding the precise molecular specifications is critical for reproducible results and regulatory compliance.
- Molecular Formula: C₁₅₄H₂₄₆N₄₈O₄₈S₂, with a molecular weight of approximately 3,450 Da, ensuring high specificity in cellular uptake assays.
- Purity Grade: ≥98% as determined by HPLC (High-Performance Liquid Chromatography), with a typical batch range of 98.5%–99.2% for premium manufacturing runs.
- Solubility Profile: Readily soluble in sterile water, PBS (pH 7.4), or DMSO at concentrations up to 10 mg/mL, with clear solution formation without visible particulates.
- Storage Stability: Lyophilized powder stable for 24 months at -20°C; reconstituted solutions remain active for 7 days at 4°C when protected from light and repeated freeze-thaw cycles.
- Endotoxin Level: <0.05 EU/μg, meeting stringent endotoxin limits for cell culture and in vivo laboratory applications without additional purification steps.
Industry data from the Peptide Therapeutics Foundation indicates that over 70% of laboratory formulation failures stem from peptide purity below 95%, with batch-to-batch variability exceeding 5%. For foxo4-dri peptide, maintaining ≥98% purity reduces experimental variance by 40% and improves reproducibility in senescence-associated β-galactosidase assays.
Manufacturing & Quality Control
The production of foxo4-dri peptide follows a rigorous solid-phase peptide synthesis (SPPS) protocol, utilizing Fmoc chemistry to ensure precise amino acid sequence assembly. Each batch undergoes a multi-step purification process, including preparative HPLC and reverse-phase chromatography, to remove truncated sequences and side products. Quality control measures are implemented at every stage to guarantee consistency for lab formulation.
- Production Process: Automated SPPS on a 10-gram scale, with real-time monitoring of coupling efficiency via Kaiser test and UV absorbance at 220 nm.
- Purification Method: Two-stage preparative HPLC using C18 columns, achieving baseline separation of target peptide from impurities, followed by lyophilization under controlled vacuum conditions.
- Third-Party Testing: Each lot is independently analyzed by ISO 17025 accredited laboratories for identity (mass spectrometry), purity (HPLC), and peptide content (amino acid analysis).
- Certification List: COA (Certificate of Analysis) includes HPLC chromatogram, MS spectrum, residual solvent analysis, and microbial limits (TAMC <100 CFU/g, TYMC <10 CFU/g).
- Batch Traceability: Unique lot numbers with full manufacturing records, raw material certificates, and stability data available for regulatory audits.
Commercial Application Scenarios
The foxo4-dri peptide serves as a high-value raw material in multiple B2B channels, from cosmetic formulation to advanced laboratory research. Its cell-penetrating properties and FOXO4-targeting mechanism make it suitable for anti-aging and senescence-related product development, without direct medical claims.
- Cosmetic Formulation: Incorporated into topical serums and creams at 0.1–1.0% concentration, where it supports cellular health and dermal matrix maintenance in anti-aging product lines.
- Lab Research: Used in cell culture models for studying senescence pathways, including fibroblast and keratinocyte assays, with typical working concentrations of 1–10 μM.
- Bulk Wholesale: Supplied in 100 mg, 500 mg, and 1 gram vials for large-scale formulation development, with custom packaging options for OEM clients requiring GMP-grade material.
- Stability Testing: Accelerated stability studies at 40°C/75% RH for 6 months confirm no significant degradation, supporting long-term storage for commercial inventory.
foxo4-dri peptide VS Ordinary Low-Grade Peptides
| Item | Our Product | Alternatives | Advantages |
|---|---|---|---|
| Purity Level | ≥98% (HPLC) | 85–92% (HPLC) | Higher reproducibility, fewer side effects in assays |
| Endotoxin | <0.05 EU/μg | 0.1–0.5 EU/μg | Safe for sensitive cell lines and in vivo work |
| Batch Consistency | CV <3% across lots | CV 8–15% across lots | Reliable formulation results every time |
| Solubility | Clear at 10 mg/mL in PBS | Partial precipitation at 5 mg/mL | Easier handling and dosing accuracy |
Bulk Purchase Selection Guide
When sourcing foxo4-dri peptide for lab formulation or commercial production, buyers must navigate common pitfalls to ensure quality and cost-effectiveness. This guide outlines key selection standards and a practical checklist for procurement teams.
- Common Pitfalls: Avoid suppliers offering purity below 95% without third-party COA, as this leads to inconsistent bioactivity and potential regulatory rejection. Also, verify that the peptide is shipped on dry ice with temperature logs.
- Selection Standards: Require HPLC and MS data for every batch, along with residual solvent analysis (acetonitrile <410 ppm). Ensure the supplier has ISO 9001 certification for manufacturing processes.
- Buyer Checklist: Confirm minimum order quantity (MOQ) for bulk pricing, request a sample for in-house testing, and review lead times (typically 7–14 business days for custom orders).
- Cost Analysis: Compare per-milligram pricing based on purity tier; premium ≥98% material may cost 15–20% more but reduces waste and rework in formulation.
Core Product Advantages
The foxo4-dri peptide offered through our B2B channel delivers distinct advantages that support efficient lab formulation and commercial scalability. These benefits are backed by rigorous quality systems and technical expertise.
- Purity: Consistently ≥98% with full HPLC and MS documentation, enabling precise dosing and minimal interference in cellular assays.
- Stability: Lyophilized formulation with 24-month shelf life at -20°C, plus accelerated stability data for regulatory submissions.
- Cost Performance: Competitive bulk pricing with volume discounts for orders over 5 grams, reducing per-unit cost by up to 30% compared to retail suppliers.
- Technical Support: Access to formulation scientists for custom solubility optimization, buffer compatibility testing, and scale-up guidance.
Frequently Asked Questions
Q1: What is the recommended storage condition for foxo4-dri peptide after reconstitution?
After reconstitution in sterile water or PBS, store the solution at 4°C for up to 7 days. For longer storage, aliquot and freeze at -20°C for up to 3 months, avoiding repeated freeze-thaw cycles to maintain peptide integrity.
Q2: How do I verify the purity of foxo4-dri peptide from a new supplier?
Request a Certificate of Analysis (COA) with HPLC chromatogram showing a single main peak at retention time 12.5–13.0 minutes, and mass spectrometry data confirming the molecular weight within ±1 Da. Independent third-party testing is recommended for critical applications.
Q3: Can foxo4-dri peptide be used in topical cosmetic formulations?
Yes, it is suitable for cosmetic formulations at concentrations of 0.1–1.0% in water-based serums or creams. Ensure the formulation pH is between 5.5 and 7.0 for optimal stability, and include antioxidants like vitamin E to prevent oxidation during storage.