Third-party testedCOA with every lotHPLC purity, reported per lotMass-spec confirmed identityEndotoxin screenedTracked shipping
Research monograph · mitochondria-targeted aromatic-cationic tetrapeptide (cardiolipin-binding)
SS-31Research monograph
Mitochondrial Function Studies
This monograph collects what the published literature reports about SS-31 — its mechanisms, the areas it is studied in, its molecular record and the sources behind them. It does not bind a receptor; it associates with cardiolipin, a phospholipid specific to that membrane and central to its structural integrity. Research examines mitochondrial function and cristae architecture.
For laboratory research use only — not for human or animal use
Mechanisms
How SS-31 works
Inner Mitochondrial Membrane Stabilization
Cardiolipin Binding
Rather than binding a receptor it associates with cardiolipin, a phospholipid found only in the inner mitochondrial membrane and central to its structure. That specificity is what concentrates it there.
Binds cardiolipin at the inner membrane
Stabilises electron-transport supercomplexes
Cristae morphology restored in damaged mitochondria
Mitochondrial Reactive Oxygen Species Reduction
ROS Scavenging
Stabilising cristae architecture is reported to reduce electron leak — the proposed route to lowering ROS production at source rather than scavenging it afterwards.
The Dmt residue provides targeted antioxidant capacity
Mitochondrial superoxide generation reduced
Electron transport efficiency preserved
Bioenergetic Function Restoration
ATP Synthesis
ATP synthesis is measured in models of mitochondrial dysfunction, where the question is whether structural stabilisation translates into recovered output.
Membrane potential restored
ATP synthase coupling improved
Respiration raised in aged tissue models
Studied applications
What SS-31 is researched for
Cardiology Research
Heart Failure
Cardiac mitochondria are unusually dense, which is why heart failure models feature so heavily for a cardiolipin-binding compound.
Daubert MA et al. 2017
Ischemia Research
Reperfusion Injury
Reperfusion generates a burst of reactive oxygen species, making it a direct test of the proposed mechanism.
Zhao K et al. 2007
Aging Biology
Mitochondrial Aging
Cristae architecture and bioenergetic output are measured in aged tissue against younger controls.
Siegel MP et al. 2013
Nephrology Research
Renal Protection
Renal tubular cells are also mitochondria-rich, and the endpoints mirror the cardiac work.
Birk AV et al. 2013
What the published work measures
The endpoints reported across the literature for this compound. The figures belong to the individual papers, not to us.
Cardiac Output Improvement (Phase II HF Trial)
Mitochondrial ROS Reduction (I/R Models)
ATP Production Improvement (Aged Muscle)
Cardiolipin Peroxidation Reduction
Reference values
SS-31 molecular data
Scroll for full molecular data →
Sequence
D-Arg-Dmt-Lys-Phe-NH2
Molecular weight
638.80 g/mol
Molecular formula
C32H49N9O5
Physical form
Lyophilized powder (5mg)
Documented purity
Quantified by HPLC, reported per lot
Storage
-20°C for long-term stability
Solubility
Soluble in water
Available sizes
10mg
FAQ
Common questions about SS-31
What is SS-31?
+
SS-31, also called elamipretide, is a four-residue peptide that concentrates at the inner mitochondrial membrane. It does not bind a receptor; it associates with cardiolipin, a phospholipid specific to that membrane and central to its structural integrity. Research examines mitochondrial function and cristae architecture.
What is SS-31 researched for?
+
Published research on SS-31 concentrates on Heart Failure, Reperfusion Injury, Mitochondrial Aging and Renal Protection. Each of those areas is summarised further up this page with the citation it comes from, and the full reference list — 4 indexed publications — sits at the bottom. Study designs and concentrations vary considerably between publications, so the primary sources are worth reading directly.
How does SS-31 work?
+
The literature describes SS-31 acting across Inner Mitochondrial Membrane Stabilization, Mitochondrial Reactive Oxygen Species Reduction and Bioenergetic Function Restoration, reported respectively as Cardiolipin Binding, ROS Scavenging and ATP Synthesis. Those pathways are drawn from preclinical models rather than clinical work, and they describe what has been observed rather than a settled mechanism — the individual pathway cards above cite what each one is based on.
What are the molecular specifications for SS-31?
+
SS-31 has a molecular formula of C32H49N9O5, an average mass of 638.8 g/mol and the sequence D-Arg-Dmt-Lys-Phe-NH2. It is indexed under CAS Elamipretide, MTP-131, Bendavia. It ships as lyophilized powder (5mg). Those are nominal reference values for the parent compound. The identity of the specific material you receive is confirmed by mass spectrometry and reported on that lot's certificate.
How should SS-31 be stored and reconstituted?
+
Store the sealed vial at -20°C, protected from light and moisture, and let it reach room temperature before opening so condensation does not form on cold powder. SS-31 is soluble in water; reconstitute by directing the diluent down the vial wall rather than onto the powder, then swirl to dissolve rather than shaking. Keep reconstituted solution refrigerated and avoid repeated freeze-thaw cycles — solutions are far less stable than lyophilized powder.
Is SS-31 approved for human use?
+
No. SS-31 is supplied strictly for in-vitro laboratory research and development. It is not a drug, food, supplement or cosmetic, it has not been evaluated by the FDA, and it is not intended for human or animal consumption, ingestion, injection or any in-vivo use. Ordering confirms you are a qualified researcher or institution purchasing on that basis.
Cited sources
Peer-reviewed literature
Independent published research indexed from PubMed — not Routine Peptides claims.
Every production run is analyzed by an independent laboratory, and the certificate for your lot travels with the order — not a catalog-wide document, and not a summary written by us.