What Is SS-31 (Elamipretide)? A Research Overview

SS-31, developmentally known as Elamipretide, is a synthetic tetrapeptide that has drawn
significant interest in mitochondrial biology research circles. This article summarizes what the
compound is, how it is characterized analytically, and what “purity grade” means in a research
supply context — without making any claims about human therapeutic use.

Analytical Identity

Researchers typically confirm peptide identity via mass spectrometry (matching expected
molecular weight) and quantify purity via HPLC (high-performance liquid chromatography). These two
tests are the backbone of any credible Certificate of Analysis.

Why Purity Grading Matters

Not all “SS-31” listed online is tested to the same standard. A documented, batch-specific COA
is the only reliable way to know what purity and identity a given vial actually has.

Research use disclaimer: All products and information on this site are intended strictly for laboratory and in-vitro research purposes. Nothing on this site constitutes medical advice, and no product is intended for human or animal consumption, diagnosis, treatment, cure, or prevention of any disease.

SS-31 Purity Grades Explained: How to Read a Certificate of Analysis

Certificates of Analysis (COAs) can look intimidating if you’re new to sourcing research
peptides. This guide breaks down exactly what each line item means and how our Standard, High
Purity, and Ultra-Pure Research grades differ.

Key COA Fields

Lot/Batch Number — ties the document to your specific vial
HPLC Purity (%) — quantifies peptide purity
MS Identity Confirmation — verifies molecular weight matches spec

Comparing Our Grades

Standard Grade is HPLC-verified at ≥98% purity. High Purity Grade raises that bar to ≥99%.
Ultra-Pure Research Grade adds mass spectrometry confirmation on top of a ≥99.5% HPLC purity
threshold, for research contexts where analytical certainty matters most.

Proper Storage and Reconstitution of Lyophilized Peptides for Laboratory Use

Improper storage is one of the most common causes of peptide degradation in a lab setting. This
article covers general best practices for handling lyophilized (freeze-dried) research peptides
like SS-31.

Before Reconstitution

Store lyophilized powder at -20°C, protected from light and moisture, until ready for use.

After Reconstitution

Once reconstituted for laboratory use, store at 2-8°C and reference your batch-specific COA
for the recommended usage window. Avoid repeated freeze-thaw cycles, which can degrade peptide
structure.

Shipping Considerations

Cold-chain packaging during transit helps preserve peptide integrity from the point of shipment
to receipt in your lab.

Mitochondrial-Targeted Peptides: A Research Landscape Overview

Mitochondrial-targeted compounds represent an active area of preclinical research. This article
gives a high-level, non-clinical overview of why this research area has grown and what analytical
standards researchers typically look for when sourcing study material.

Why This Research Area Has Grown

Interest in mitochondrial biology has expanded across multiple academic and industry research
programs over the past decade, driving demand for well-characterized peptide reagents.

What to Look for in a Research Supplier

Independent, batch-specific testing (not a generic COA template)
Transparent purity grading
Documented storage and cold-chain shipping practices

This article is an educational overview only and does not describe or endorse any specific
clinical outcome, therapeutic use, or human application.

How to Choose a Reliable Peptide Supplier: Questions to Ask

The research peptide market includes suppliers with widely varying testing standards. Here are
the questions we think every lab should ask before ordering.

Questions to Ask Any Supplier

Is every batch independently tested, or only occasionally spot-checked?
Does the COA match the specific lot you’re receiving?
What testing methods are used — HPLC only, or HPLC plus MS identity confirmation?
How is the product shipped and stored in transit?

Transparency on these points is a reasonable baseline for any supplier claiming “research
grade” material.

Understanding HPLC and Mass Spectrometry Testing for Peptide Verification

HPLC and mass spectrometry are the two core analytical methods behind any credible peptide
Certificate of Analysis. Here’s what each one actually measures.

HPLC (High-Performance Liquid Chromatography)

HPLC separates a sample into its component parts and measures the relative proportion of each,
giving a quantitative purity percentage for the peptide of interest.

Mass Spectrometry (MS)

MS measures the molecular weight of a sample, confirming that what’s in the vial actually
matches the expected mass of the target peptide — an identity check that HPLC purity alone
doesn’t provide.

Why Both Matter

Purity without identity confirmation only tells you the sample is “clean” — not that it’s the
correct compound. Our Ultra-Pure Research Grade uses both tests for that reason.

Hello world!

Welcome to WordPress. This is your first post. Edit or delete it, then start writing!