SS-31
Mitochondrial Peptide - Cardiolipin-targeting peptide studied for mitochondrial function.
SS-31 (Elamipretide) is a mitochondria-targeted tetrapeptide that binds cardiolipin on the inner mitochondrial membrane, studied for its role in preserving mitochondrial energy production.
SS-31 (Elamipretide) is notable for advancing into clinical trials for mitochondrial and cardiovascular indications, which places it among the more rigorously studied compounds here. Its selectivity for cardiolipin gives it a well-defined molecular target on the inner mitochondrial membrane.
SS-31 specifications
- CAS number
- 736992-21-5
- Molecular formula
- C32H49N9O5
- Molecular weight
- 639.78 g/mol
- Sequence
- Elamipretide - mitochondria-targeted tetrapeptide
- Residues
- 4 residues (tetrapeptide)
- Presentation
- Lyophilized powder
- Documented purity
- 99.58% by HPLC
- Available sizes
- 10mg ($55), 50mg ($145)
- Archived COA lots
- 4
- Intended use
- Laboratory research use only. Not for human or veterinary use.
Studied pathways
- Cardiolipin binding - Studied for stabilization of the electron-transport chain in mitochondrial-research models.
Reported mechanisms in the literature
- Cardiolipin binding - A mitochondria-targeted tetrapeptide (Elamipretide) that binds cardiolipin on the inner mitochondrial membrane, studied for stabilizing the electron-transport chain. (Szeto & Schiller)
What SS-31 is researched for
- Bioenergetics - Studied for stabilizing the electron-transport chain via cardiolipin binding. (Szeto & Schiller)
- Ischaemia models - Investigated for mitochondrial protection in cardiac and renal ischaemia research. (Szeto et al.)
SS-31 certificates of analysis on file
Every lot below was tested by an independent laboratory and the full report is published as a PDF. Purity is shown exactly as the report states it. The same records are searchable in the COA library and can be checked on the lot verification page.
| Lot | Tested | Size | Laboratory | HPLC purity | Identity | Certificate |
|---|---|---|---|---|---|---|
| 424EWW | 16 Oct 2026 | 10mg | Freedom Diagnostics | 99.70% | Confirmed (LC-MS/MS) | COA PDF |
| 8X0MWA | 19 Aug 2026 | 10mg | Accurate Test Labs | 99.73% | Confirmed (LC-MS/MS) | COA PDF |
| V0124N | 31 Jul 2026 | 10mg | Accurate Test Labs | 99.79% | Confirmed (LC-MS/MS) | COA PDF |
| SS31-10-032026-1 | 20 May 2026 | 10mg | Freedom Diagnostics | 99.89% | Confirmed (LC-MS/MS) | COA PDF |
SS-31 sizes and pricing
| Size | Price | Per mg |
|---|---|---|
| 10mg | $55 | $5.50 per mg |
| 50mg | $145 | $2.90 per mg |
Published literature on SS-31
The mechanisms above trace to peer-reviewed studies indexed on PubMed. These are independent third-party publications, not Aspect Peptides claims. Browse indexed research on PubMed.
SS-31 frequently asked questions
What is SS-31?
SS-31 (Elamipretide) is a mitochondria-targeted tetrapeptide that binds cardiolipin, studied for preserving mitochondrial energy production in cell and animal models.
Is SS-31 an approved drug?
No. It has been studied in clinical trials but has no marketing approval. It is supplied here for laboratory research only.
What is it researched for?
Mitochondrial function and bioenergetics via cardiolipin interaction, across mitochondrial-disease and aging research.
Documented to 99.58% purity by HPLC · third-party COA every lot · from $55 · For laboratory research use only.
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