Research use only ✓ COA SS-31
Mitochondrial Peptides 4.6

SS-31

CAS 736992-21-5

A mitochondria-targeting tetrapeptide, D-Arg-dimethylTyr-Lys-Phe-NH2, also known as elamipretide.


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Verified test results

Every batch, independently verified.

Each batch is analyzed by an ISO/IEC 17025 accredited third-party laboratory before it ships. This is the released report for the size selected above, exactly as the lab signed it.

ILS LaboratoriesIndependent, ISO/IEC 17025 accredited

Certificate of analysis

99.90%

Purity by HPLC

Lot
ACE-7909990
Tested
Sep 3, 2026
Labeled
10mg
Measured
10.72mg
ISO 17025 accredited7× tested

Full QC panel

5 passed · 2 reported

Purity

HPLC

99.90%Pass

Net Peptide Content

10.72mgReported

Identity

HPLC

SS-31Pass

Fentanyl Screen

Not DetectedPass

Heavy Metals

ICP-MS

Not DetectedPass

Sterility

PCR

No GrowthPass

Endotoxin

USP <85>

0.101 EU/mLReported

Every size on record

Open any size’s signed certificate. Your order ships with the report for the size you buy.

SS-31 10mg

Selected

LOT ACE-7909990

99.90%

HPLC purity · meets spec

Labeled
10mg
Measured
10.72mg
Identity
SS-31
Heavy metals
Not Detected
Sterility
No Growth
Endotoxin
0.101 EU/mL
Tested
Sep 3, 2026

5 assays passed · ILS Laboratories, ISO/IEC 17025 accredited

SS-31 50mg

Selected

LOT ACE-2817021

99.90%

HPLC purity · meets spec

Labeled
50mg
Measured
51.82mg
Identity
SS-31
Heavy metals
Not Detected
Sterility
No Growth
Endotoxin
0.101 EU/mL
Tested
Sep 3, 2026

5 assays passed · ILS Laboratories, ISO/IEC 17025 accredited

Technical specification

What is on file, and how it is handled

Every figure below is transcribed from the paperwork for this compound.

What is SS-31?

Its alternating aromatic and cationic residues let it bind cardiolipin through two mechanisms at once: the hydrophobic acyl chains and the anionic phosphate head groups. Cardiolipin sits almost exclusively in the inner mitochondrial membrane, which is how a freely diffusing peptide ends up concentrated there. Reported under CAS 736992-21-5. Studied in mitochondrial-function research.

Material

Compound
SS-31
Form
Lyophilised powder
CAS
736992-21-5

Verification

Identity
Confirmed on the certificate of analysis
Purity
See certificate
Batch
See certificate
Documentation
Per-batch certificate of analysis

Handling

Storage
Store at −20 °C, protected from light
Intended use
In-vitro laboratory research only

ReviewsWhat researchers say