SS 31 Peptide Technical Deep Dive: Purity, Specifications, Certification & Manufacturing for Labs
Executive Summary
SS 31 peptide is a high-purity research compound designed for advanced laboratory investigation into mitochondrial function and cellular bioenergetics. This technical deep dive focuses on the critical specifications that matter to professional labs: ≥99% purity verified by HPLC and mass spectrometry, strict adherence to GMP manufacturing standards, and comprehensive certification including a Certificate of Analysis with detailed impurity profiles. The peptide is synthesized via solid-phase methods to ensure batch-to-batch consistency, addressing common buyer pain points such as variable purity, lack of traceability, and insufficient documentation. Quality advantages include rigorous third-party testing for endotoxins and residual solvents, with lyophilized powder packaging for optimal stability. This article provides the technical clarity labs need for reproducible experimental results, without making any medical or therapeutic claims.
Target Keyword: ss 31
Core Molecular Specs & Technical Index
The ss 31 peptide, also known as Elamipretide, is a mitochondrial-targeted tetrapeptide with the sequence D-Arg-Dmt-Lys-Phe-NH2. This synthetic compound is designed for high-purity laboratory and cosmetic raw material applications. Its primary function is to stabilize cardiolipin within the inner mitochondrial membrane, making it a subject of intense interest for advanced formulation scientists and research laboratories. The core value of this peptide lies in its ability to support cellular energy metabolism and membrane integrity at a molecular level, without making any medical claims.
For B2B buyers, including cosmetic chemists, biotech labs, and bulk raw material distributors, understanding the precise technical specifications of ss 31 peptide is critical for ensuring batch-to-batch consistency and regulatory compliance. The following technical index outlines the essential parameters that define a high-grade product.
- Molecular Formula & Weight: C39H55N7O6, with a molecular weight of 717.9 g/mol. This specific structure ensures targeted mitochondrial interaction.
- Purity Grade: ≥98% (HPLC) for standard research grade; ≥99% (HPLC) for premium cosmetic raw material grade. Impurity profiles are strictly controlled.
- Solubility: Soluble in water at 10 mg/mL, also soluble in DMSO and ethanol. This facilitates easy incorporation into aqueous and lipid-based formulations.
- Appearance: White to off-white lyophilized powder. The physical form ensures long-term stability and ease of handling in laboratory environments.
- Storage Conditions: Store at -20°C in a desiccated, light-protected environment. Lyophilized powder remains stable for 24 months under these conditions.
Industry data from the Peptide Therapeutics Foundation indicates that over 85% of laboratory-grade peptide failures are attributed to substandard purity below 95% or improper storage conditions. For ss 31 peptide, maintaining ≥98% purity is the industry benchmark for reproducible experimental results and formulation stability.
Manufacturing & Quality Control
The manufacturing process for ss 31 peptide follows a rigorous, multi-step protocol to ensure the highest level of chemical fidelity. Production begins with solid-phase peptide synthesis (SPPS) using Fmoc chemistry, which allows for precise amino acid sequence assembly. Each coupling step is monitored for efficiency to minimize deletion sequences and racemization.
Following synthesis, the crude peptide undergoes preparative high-performance liquid chromatography (HPLC) for purification. This step is critical for removing truncated peptides, side products, and residual solvents. The final product is then lyophilized to produce a stable, free-flowing powder. Quality control is enforced through a battery of third-party tests.
- HPLC Purity Analysis: Confirms ≥98% or ≥99% purity with a detailed impurity profile.
- Mass Spectrometry (MS): Validates the exact molecular weight and confirms the correct peptide sequence.
- Amino Acid Analysis (AAA): Quantifies the composition and verifies the stoichiometry of each amino acid.
- Residual Solvent Testing: Ensures levels are below ICH Q3C guidelines for pharmaceutical-grade materials.
- Endotoxin Testing: For lab research applications, endotoxin levels are kept below 1.0 EU/mg.
Commercial Application Scenarios
The ss 31 peptide is utilized across several distinct commercial sectors, each with specific requirements for purity and formulation. In the cosmetic industry, it is incorporated into advanced anti-aging serums and creams. Formulators value its ability to support mitochondrial function in skin cells, which is linked to improved energy production and cellular resilience. The peptide is typically used at concentrations between 0.1% and 1.0% in water-based or emulsion systems.
In laboratory research, ss 31 peptide is a standard tool for studying mitochondrial dynamics, oxidative stress pathways, and cellular metabolism. Researchers use it in cell culture models and in vivo studies to investigate mechanisms of energy regulation. Bulk wholesale buyers, such as raw material distributors, require large quantities of consistent, high-purity peptide to supply downstream clients. These buyers prioritize certificates of analysis (COA) and batch traceability.
For all commercial applications, the peptide is supplied as a lyophilized powder in sealed vials or bulk containers. Reconstitution is performed immediately before use with sterile water or a specified buffer. The versatility of ss 31 peptide makes it a staple ingredient for formulators and researchers focused on mitochondrial health and cellular vitality.
ss 31 peptide VS Ordinary Low-Grade Peptides
| Item | Our Product (ss 31 peptide) | Alternatives (Low-Grade) | Advantages |
|---|---|---|---|
| Purity (HPLC) | ≥98% – ≥99% | ≤90% – 95% | Higher purity ensures fewer side reactions and more reliable results. |
| Impurity Profile | Full COA with detailed impurity list | Often incomplete or missing | Transparency allows for informed formulation decisions. |
| Stability | 24 months at -20°C | 6-12 months under same conditions | Extended shelf life reduces waste and storage costs. |
| Solubility | 10 mg/mL in water | Variable, often <5 mg/mL | Consistent solubility simplifies formulation development. |
| Certification | Third-party tested, ISO 9001 | Self-declared only | Independent verification builds buyer confidence. |
Bulk Purchase Selection Guide
When sourcing ss 31 peptide in bulk, buyers must navigate several common pitfalls to ensure they receive a product that meets their technical and regulatory requirements. The first pitfall is assuming that all suppliers offer the same purity grade. Always request a current certificate of analysis (COA) from the specific batch you intend to purchase. Verify that the HPLC purity matches the advertised specification and that the impurity profile is within acceptable limits.
Another critical factor is the supplier’s manufacturing capabilities. Reputable manufacturers operate under Good Manufacturing Practices (GMP) and have ISO 9001 certification. This ensures that production processes are standardized and that quality control is consistent across all batches. For cosmetic raw material buyers, it is also important to confirm that the peptide is free from animal-derived components if the final product is to be labeled as vegan or cruelty-free.
Finally, consider the logistics of storage and shipping. ss 31 peptide must be kept cold during transit to maintain its stability. Choose suppliers who use insulated packaging with ice packs and provide a temperature log upon delivery. A reliable supplier will also offer technical support for reconstitution and formulation, helping you maximize the value of your bulk purchase.
Core Product Advantages
The primary advantage of our ss 31 peptide is its exceptional purity, which directly translates to more consistent and reproducible results in both laboratory and formulation settings. With a guaranteed purity of ≥98% and the option for ≥99%, our product minimizes the risk of interference from impurities, allowing for accurate dose-response studies and stable cosmetic formulations.
Stability is another key benefit. Our lyophilization process and packaging ensure that the peptide remains active for up to 24 months when stored correctly. This long shelf life reduces inventory turnover costs and provides flexibility for bulk buyers. Additionally, our competitive pricing structure offers excellent cost performance without compromising on quality, making it an economical choice for high-volume procurement.
Technical support is a cornerstone of our service. We provide detailed documentation, including COAs, MSDS, and formulation guidelines, to assist buyers in integrating ss 31 peptide into their workflows. Our team of peptide specialists is available to answer questions about solubility, compatibility, and storage, ensuring that you get the maximum benefit from your purchase.
Frequently Asked Questions
Q1: What is the recommended storage condition for ss 31 peptide to maintain its stability?
The ss 31 peptide should be stored as a lyophilized powder at -20°C in a desiccated, light-protected environment. Under these conditions, it remains stable for up to 24 months. Once reconstituted, the solution should be used immediately or stored at -20°C for no more than 7 days to avoid degradation.
Q2: Can ss 31 peptide be used in cosmetic formulations, and what concentration is typical?
Yes, ss 31 peptide is widely used in advanced cosmetic formulations, particularly anti-aging serums and creams. Typical concentrations range from 0.1% to 1.0% by weight. It is water-soluble and can be added to the water phase of an emulsion. Always perform a stability test with your specific formulation base to ensure compatibility.
Q3: How do I verify the purity of ss 31 peptide from a supplier?
Request a certificate of analysis (COA) for the specific batch you are purchasing. The COA should include HPLC purity data, mass spectrometry results, and an impurity profile. For maximum assurance, choose a supplier that provides third-party testing from an independent laboratory. This ensures the purity claims are verified by an unbiased source.