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SS-31 50 mg lyophilized research peptide vial, PRIMEGEN LABS front label. Buy SS-31 50 mg from PrimeGen Labs — 99.1% purity lyophilized SS-31 peptide for laboratory research, third party tested by HPLC and mass spectrometry, supplied in a sealed 10 mL borosilicate vial with a batch-matched certificate of analysis.

Longevity & Cellular Research

SS-31

Elamipretide, cardiolipin-binding peptide

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Mitochondria-targeted tetrapeptide studied for inner-membrane cardiolipin interaction.

$194.00
  • Third-party tested
  • Ambient-stable transit
  • Lot traceable
  • Batch-matched COA
  • Tracked delivery
  • Research use only

For laboratory research use only. Not for human or veterinary consumption.

Laboratory specifications

Purity (RP-HPLC)
99.1%
Molecular formula
C32H49N9O5
Molecular weight
639.79 g/mol
Sequence
D-Arg-Dmt-Lys-Phe-NH2
CAS number
736992-21-5
Form
Lyophilized powder
Appearance
White to off-white lyophilized powder or cake, free of visible particulates.
Solubility
Sterile or bacteriostatic water; DMSO for hydrophobic sequences
Endotoxin
< 0.25 EU/mg
Fill weight
50 mg
Storage temperature
-20 °C sealed · 2–8 °C after reconstitution
Shelf life
36 months at -20 °C from the manufacture date
Reconstitution
Add diluent slowly down the vial wall; do not shake or vortex
Synthesis
Solid-phase (SPPS)
Identity
ESI-MS confirmed
Residual solvent
< 0.5%
Closure
Crimped aluminium / butyl stopper
Manufacturer
PRIMEGEN LABS · PrimeGen Co.

Storage & handling

  • Long-term

    -20 °C, sealed, desiccated

  • In transit

    Ambient stable up to 21 days

  • After reconstitution

    2–8 °C, use within 21 days

  • Light exposure

    Protect from direct light

Certificate of analysis

Lot XX · HPLC + MS report issued by an independent laboratory. The released PDF is available on request.

Lot number
XX
EXP
XX/XXXX
COA date
On request
Testing laboratory
Independent ISO lab
Purity
99.1%
Testing method
RP-HPLC + ESI-MS
Batch status
Released — report on request
A batch-matched digital certificate for lot XX is available on request.

Research background

SS-31, also referenced as elamipretide, is a synthetic tetrapeptide from the Szeto-Schiller series. Its alternating aromatic-cationic architecture allows it to concentrate in the inner mitochondrial membrane independently of membrane potential.

Mechanism of action

Associates selectively with cardiolipin in the inner mitochondrial membrane. Reported consequences include stabilisation of cristae architecture, improved efficiency of the electron transport chain supercomplexes, and reduced reactive oxygen species leakage — an interaction with a structural lipid rather than a protein receptor.

Areas of scientific investigation

  • Cardiolipin interaction and mitochondrial membrane biophysics
  • Reactive oxygen species and oxidative-stress assays
  • Cristae morphology by electron microscopy
  • Electron transport chain efficiency studies

Listed fields describe where this sequence appears in published in vitro and preclinical literature. They are not indications, applications, or claims of effect.

Laboratory handling

Reconstitution

Allow the vial to reach room temperature before opening to prevent condensation on the lyophilized cake. Add sterile or bacteriostatic water slowly down the inner wall of the vial, then let the powder dissolve without agitation; swirl gently if needed. Do not shake or vortex — shear forces denature peptide secondary structure and cause foaming that traps material on the stopper.

Stability

As a sealed lyophilized powder the material is stable for extended periods at -20 °C when kept desiccated and protected from light. Once in solution, stability shortens considerably: aqueous stocks are normally held at 2-8 °C for short term work or aliquoted and frozen for longer storage. Repeated freeze-thaw cycling is the most common cause of measurable potency loss.

Packaging

Single sequence per vial, sealed under inert gas in USP Type I borosilicate glass with a butyl rubber stopper and crimped aluminium overseal. Each vial carries a printed PRIMEGEN LABS label with product name, strength, lot number, manufacture and retest dates, storage temperature and a QR code linking to the lot record. Vials ship in a rigid foam insert inside a protective mailer at ambient temperature.

Frequently asked questions

Compare with similar compounds

SS-31 vs NAD+

Open full comparison
SS-31 compared with similar research compounds
CompoundStrengthCategoryMolecular weightAvailabilityPrice
SS-31This page50 mgLongevity & Cellular Research639.79 g/molBackorder · next lot, 5–7 business days$194.00
NAD+500 mgLongevity & Cellular Research663.43 g/molIn stock$55.00

Complete your order

Laboratory consumables matched to 1 vial in your cart.

  • Bacteriostatic Water — 30 mL

    Bacteriostatic Water

    30 mL

    1 × 30 mL — one vial of diluent per 3 peptide vials

    $16.00
  • Sterile Syringes — 10-pack · 1 mL

    Sterile Syringes

    10-pack · 1 mL

    10-pack covers a standard order

    $13.00
  • Alcohol Prep Pads — 100-pack

    Alcohol Prep Pads

    100-pack

    Septum decontamination before every draw

    $9.00
  • Vial Storage Case — 25 slots

    Vial Storage Case

    25 slots

    Keeps lots organised and light-protected

    $33.00

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SS-31 · 50 mg

Backorder · next lot, 5–7 business days

$194.00