| Test | Method | Limit | Result |
|---|---|---|---|
| Purity | HPLC | ≥ 99.0% | 99.53% |
| Identity | Mass spectrometry | 639.8 ± 1.0 Da | 639.8 Da |
| Net content | Quantitative HPLC | ≥ 10 mg | 10.23 mg |
| Endotoxin | LAL assay | ≤ 0.5 EU/mg | 0.08 EU/mg |
| Sterility | Membrane filtration | No growth | No growth |
| Heavy metals | ICP-MS | ≤ 10 ppm total | 0.9 ppm |
| Moisture | Karl Fischer | ≤ 8.0% | 2.8% |
Mitochondria-targeted aromatic-cationic tetrapeptide
C32H49N9O5
639.8 Da · 4 residues
Cellular · Mitochondria-targeted aromatic-cationic tetrapeptide
10 mg to 50 mg · 4 residues · 639.8 Da
Size$6.00/mg
Quantity10+ of one compound: 40% off
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For in-vitro research use only. Not for human or animal use.
Cellular
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MOTS-c / SS-31 10 / 10 mgCellular
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BPC-157 10 mgTissue + immune
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GHK-Cu 50 mgNeural
Semax 10 mgMetabolic
GLP-3 RT 5 mg01Verified test results
SS-31 lot SA-SS3-2610 was tested Oct 8, 2026 at an independent laboratory before it shipped. Every value is printed against its limit, so a pass means something.
Certificate of analysis
99.53%
Purity by HPLC
Profile drawn from the reported purity
Purity by HPLC, identity by mass spectrometry, net content by quantitative HPLC, endotoxin by LAL, sterility by membrane filtration, heavy metals by ICP-MS and moisture by Karl Fischer. Report SA-SS3-2610-01, Oct 8, 2026. Open the lot record.
Open any lot's certificate. Your order ships from the current released lot, and its QR code opens this record.
99.53%
HPLC purity
Tested Oct 8, 2026 · 7/7 assays · sample
99.15%
HPLC purity
Tested Sep 10, 2026 · 7/7 assays · sample
02Verify your vial
Every vial label carries a QR code. Point your phone camera at it.
The code opens that lot's certificate with every assay value. No phone? Type the lot from your packing slip on Verify a lot.
Each signed certificate links to the lab's own verification page, so the report can be confirmed independently of us.
03Analytical identity
Studied in mitochondrial inner-membrane (cardiolipin) models in vitro.
| Compound | Mitochondria-targeted aromatic-cationic tetrapeptide |
|---|---|
| Formula | C32H49N9O5 |
| Molecular weight | 639.8 Da |
| Residues | 4 |
| Form | Lyophilised powder, 10 mg, 30 mg, 50 mg |
| Storage | Sealed at -20 °C, away from light and moisture |
Sequence
Side-chain composition
Every heavy atom is placed from the sequence with ideal bond lengths and angles, so the connectivity is exact. The pose is idealised (an extended chain) and is not a measured conformation. Identity for each lot is confirmed on its certificate.
Structure viewer04In the lab
SS-31 (elamipretide) is a cell-permeable tetrapeptide that targets the inner mitochondrial membrane. In laboratory research it binds cardiolipin, limits cytochrome c peroxidase activity and protects cristae, supporting ATP recovery after ischemia.
Compound
SS-31D-Arg-Dmt-Lys-Phe-NH2, a cardiolipin-binding peptideKidney tissue
Endpoint studied
Bound cardiolipin, blocked cytochrome c peroxidase activity, kept cristae intact and sped ATP recovery.
Birk 2013 · PMID 23813215Microglial cells
Endpoint studied
Lowered fission protein 1, preserved mitochondrial structure and reduced LPS-driven oxidative stress.
Mo 2019 · PMID 31582222Macrophage cells
Endpoint studied
Less ROS and cholesterol buildup, lower CD36 and LOX-1, and less IL-6 and TNF-alpha after ox-LDL.
Hao 2015 · PMID 26633327Pathways as reported in the cited laboratory studies. For in-vitro research use only.
05Research history
5 milestones, each linked to its PubMed record
Journal of the American Society of Nephrology
D-Arg-2',6'-dimethyltyrosine-Lys-Phe-NH2 kept islet mitochondria polarized, cut apoptosis and raised human islet viability.
PubMed · PMID 17151329The Journal of Biological Chemistry
Smaller infarcts in an ischemia model, with CD36 lowered and oxLDL-induced foam cell formation reduced.
PubMed · PMID 17178711Journal of the American Society of Nephrology
SS-31 binds cardiolipin, blocks cytochrome c peroxidase activity and protects cristae, speeding ATP recovery.
PubMed · PMID 23813215Journal of Molecular Biology
Elamipretide raised engulfment of mitochondria into autophagosomes in INS1 beta cells, including under nutrient excess.
PubMed · PMID 30389435Communications Biology
Elamipretide eased cristae fragmentation and complex I, II and IV deficits after ischemia-reperfusion.
PubMed · PMID 32680996 LatestLaboratory research only, cited for research context. Not a claim about use in people.
06Questions
About SS-31, its certificate and your order.
Email [email protected], Monday to Friday. A person replies within one business day.
The current released lot, SA-SS3-2610. Scan the QR code on the vial label to open its certificate. The lot number is also on your packing slip, and the full certificate is here.
Every certificate is issued by an independent laboratory. Each lot has its own public record page with every assay value, and a link to verify the report on the lab's own site once the signed PDF is posted.
Vials are filled slightly over the labelled mass so that every vial meets it. Net content is measured on each lot and published as a number, not a pass.
Email [email protected] within 7 days with your order number and a photo and we will replace it.
Orders by 2 PM ET on a weekday ship the same day, with tracking emailed when the label prints.
No. It is sold strictly for in-vitro laboratory research and is not for human or animal use of any kind.
07Complete the box
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