Buy SS-31 Online — USA-Made, COA per Lot, Ships Same Day

At a glance: Buy research-grade SS-31 with verified lot traceability

PX1 Research is the premier domestic supplier for institutional laboratories, university research departments, and independent investigators who need to buy SS-31 online with verified analytical purity. Also designated in literature as Bendavia or MTP-131, SS-31 (Elamipretide) is a synthesized, mitochondria-targeting tetrapeptide engineered specifically for cellular and in-vitro research models.

When procuring experimental compounds for critical laboratory assays, batch consistency and analytical verification are paramount. Every order fulfilled by PX1 Research includes batch-specific Certificates of Analysis (COAs) accessible directly via QR code or our analytical database. Our domestic infrastructure eliminates the unpredictable lead times, customs holds, and quality control failures common with offshore suppliers.

Investigators can choose from multiple unit masses tailored to high-throughput screening or targeted cellular studies. All shipments originate from our dual domestic distribution hubs in California and Arizona, guaranteeing rapid, climate-managed delivery across the United States. To review active batch data or secure stock, order 10 mg vials of SS-31 directly from our live catalog.

What is SS-31 (Elamipretide)? Preclinical research overview

SS-31, frequently referenced as elamipretide or ss31 in biomedical literature, is a small synthetic tetrapeptide consisting of alternating aromatic and basic amino acid residues (D-Arg-2',6'-Dmt-Lys-Phe-NH2). In preclinical models, SS-31 selectively target and transiently bind to cardiolipin, an essential phospholipid located exclusively within the inner mitochondrial membrane.

Preclinical and in-vitro research models utilize elamipretide to investigate mitochondrial bioenergetics, electron transport chain kinetics, and the mitigation of reactive oxygen species (ROS) at the cellular level. By stabilizing cardiolipin structures, research models demonstrate preserved cristae architecture and supported ATP production under experimental cellular stress conditions.

All SS-31 supplied by PX1 Research is manufactured exclusively for laboratory, in-vitro, and preclinical research applications. It is strictly not intended for clinical, medical, human, or diagnostic use. Researchers studying cellular metabolism often cross-reference SS-31 with related mitochondrial compounds in our research peptide library to establish baseline comparative data across cellular line assays.

Why researchers choose PX1 Research when buying SS-31 online

Navigating the research chemical supply chain requires selecting a partner that prioritizes analytical precision over retail shortcuts. PX1 Research operates under strict quality-assurance frameworks designed to deliver research-grade purity and total supply chain transparency.

Our manufacturing process utilizes solid-phase peptide synthesis (SPPS) executed within domestic ISO 9001:2015-aligned facilities. Following synthesis, crude peptides undergo multi-stage preparative High-Performance Liquid Chromatography (HPLC) purification to remove truncated sequences, residual reagents, and synthesis side-products. The resulting product yields a consistent purity level exceeding 98.0%.

By maintaining dual distribution nodes in California and Arizona, we safeguard your supply chain against regional logistics disruptions. Orders placed before 2:00 PM PST dispatch the same business day, allowing laboratories to maintain strict project timelines without inventory bottlenecks. When you select PX1 Research to buy SS-31 online, you receive fully documented, domestically verified compounds backed by responsive technical support.

SS-31 vendor evaluation: Key specifications and criteria

Evaluating research vendors requires direct, verifiable metrics. Below is a structured criteria matrix comparing standard vendor offerings against PX1 Research quality control protocols:

Purity Verification: Standard vendors offer generic or static COAs; PX1 Research provides batch-specific HPLC and Electrospray Ionization Mass Spectrometry (ESI-MS) reports for every lot.

Chemical Sourcing: Standard vendors rely on unverified offshore re-packagers; PX1 Research maintains domestic synthesis and rigorous internal quality management.

Endotoxin Testing: Standard vendors rarely analyze endotoxin levels; PX1 Research verifies endotoxin content via quantitative chromogenic LAL assays (<0.01 EU/mg guaranteed).

Lot Traceability: Standard vendors supply unlabelled or batch-agnostic packaging; PX1 Research equips every vial with a unique lot ID and direct QR code linking to active analytical data.

Fulfillment & Shipping: Standard vendors subject orders to international customs risks or multi-week delays; PX1 Research offers same-day domestic dispatch M–F from CA and AZ.

Technical Support: Standard vendors offer automated or non-technical response teams; PX1 Research provides dedicated, laboratory-trained support staff accessible via phone and email.

Red flags to avoid when buying SS-31 online

The online market for research peptides presents significant risks for procurement managers. Unregulated vendors frequently market non-standardized products that jeopardize experimental repeatability and instrument integrity. Identifying key operational red flags protects your research investment.

A primary red flag is the reliance on static, watermarked Certificate of Analysis documents where the batch number, date, or purity percentage appears edited or recycled across multiple lots. Without independent, lot-specific Mass Spectrometry (MS) to verify molecular weight alongside HPLC purity traces, there is no guarantee that the material inside the vial matches the label.

Another warning sign is a vendor's inability to provide endotoxin (lipopolysaccharide) data. Endotoxins introduce severe confounding variables in cell culture assays, triggering unwanted inflammatory signal cascades that distort research outcomes. Finally, avoid suppliers operating out of foreign jurisdictions without domestic dispatch fulfillment; international transit exposes temperature-sensitive lyophilized compounds to extended thermal stress and customs seizure risks.

Working with PX1 Research eliminates these vulnerabilities. We invite researchers to audit our quality assurance process and review live batch analytics prior to placing an order for high-purity SS-31 vials.

Analytical purity and quality control: HPLC, MS, and endotoxin standards

Analytical integrity is the cornerstone of empirical research. Every lot of SS-31 produced for PX1 Research undergoes comprehensive third-party testing by independent testing laboratories located within the United States.

High-Performance Liquid Chromatography (HPLC) is utilized to determine chromatographic purity, confirming that the target peptide peak accounts for >= 98.0% of total integrated peak area. This ensures freedom from short-sequence impurities or unreacted amino acid fragments. Concurrently, Mass Spectrometry (MS) verifies exact molecular weight, matching the theoretical mass of elamipretide (M+H = 639.8 g/mol) to eliminate any possibility of compound substitution.

Furthermore, our quality control protocol incorporates bacterial endotoxin testing via the Limulus Amebocyte Lysate (LAL) method. Keeping endotoxin levels below stringent thresholds ensures that in-vitro assays evaluating mitochondrial respiration, cellular viability, or enzymatic pathways remain free from lipopolysaccharide-induced artifacts. Researchers can examine sample reports in our analytical research documentation.

Handling, storage, and reconstituting SS-31 for laboratory assays

SS-31 is supplied as a sterile-filtered, lyophilized (freeze-dried) powder housed in heavy-duty borosilicate glass vials under inert atmosphere. Lyophilization preserves molecular integrity during transit and long-term storage.

Upon arrival at your facility, unopened lyophilized vials should be stored at -20°C for short-to-medium term stability, or -80°C for extended archival storage. Avoid exposure to light, moisture, and repeated freeze-thaw cycles. Prior to reconstitution, allow the vial to equilibrate to room temperature to prevent condensation inside the container.

Reconstitution should be conducted within a laminar flow hood using sterile laboratory-grade solvents such as bacteriostatic water, sterile water for injection, or sterile phosphate-buffered saline (PBS), depending on experimental protocols. Gently swirl or invert the vial until complete dissolution occurs; never vortex high-purity peptide solutions aggressively, as shear forces may disrupt molecular conformation. Once reconstituted, aliquot into single-use working volumes and store at -20°C or colder.

Comparing SS-31 with other mitochondrial research peptides

In mitochondrial physiology studies, researchers frequently evaluate SS-31 alongside complementary mitochondrial-derived peptides (MDPs) and bioenergetic compounds to assess differential cellular targets.

While SS-31 specifically targets cardiolipin structures in the inner mitochondrial membrane to optimize electron transfer, compounds such as MOTS-c peptide act primarily as nuclear-encoded signaling peptides regulating metabolic homeostasis, AMPK pathways, and insulin sensitivity models.

Similarly, researchers examining cellular NAD+ depletion pathways often pair SS-31 assays with NAD+ research formulations to analyze dual-pathway restoration of mitochondrial bioenergetics and sirtuin activity. Accessing these complementary compounds within a single, quality-verified domestic catalog streamlines comparative experimental design for multidisciplinary research groups.

Bulk ordering and institutional procurement options

PX1 Research accommodates the scale requirements of high-throughput research programs, institutional laboratories, and commercial R&D pipelines. In addition to individual unit sizes, we offer scalable procurement solutions designed for sustained investigative projects.

Our streamlined supply chain supports custom batch sizes, volume pricing tiers, and standing supply contracts. Contract research organizations (CROs) and university procurement departments can establish dedicated billing and logistics workflows, ensuring uninterrupted material availability for long-term experimental series.

Institutional buyers seeking custom synthesis specifications, specific container formats, or bulk lot reservations are encouraged to consult our wholesale research peptide program to speak directly with an account specialist.

Ordering SS-31 from PX1 Research

When you place an order for SS-31 through PX1 Research, your material is packed and dispatched under strict quality management standards. Each unit consists of a vacuum-sealed 3ml borosilicate glass vial with a secure flip-off aluminum seal and butyl rubber stopper to prevent atmospheric contamination.

We offer standard research vial options including 10 mg mass allocations, ensuring researchers can select the optimal quantity for their specific dilution and assay requirements. Orders completed prior to 2:00 PM PST Monday through Friday dispatch the exact same day from our fulfillment centers in California or Arizona. All shipments include detailed tracking metadata for real-time transit monitoring.

Every shipped vial features a dedicated QR code providing instant mobile access to the lot-specific HPLC/MS and endotoxin analytical certificates. Should you require administrative assistance or technical verification, our US-based technical support team is available via live chat, email, and phone during standard business hours.

Ready to advance your experimental research? Secure fully verified, USA-synthesized material today—order SS-31 online from PX1 Research or explore our complete catalog of research peptides.