Certificate library
SS-31 Certificate of Analysis
- Current batch
- 99.22%
- APL-SS3110-2608-01
- Batches published
- 1
- Measured purity
- 99.22%
- Most recent analysis
- 31 August 2026
Every batch of SS-31 is assayed in our own laboratory before it is released. Purity is measured by HPLC / Mass Spectrometry on the PDA 214 nm channel, reported as main-peak area against every integrated impurity peak. Molecular identity is confirmed by LC-MS across 2 monitored ion channels. The release specification is ≥98.0%. Across the 1 batch published here, measured purity was 99.22%.
Current batch — APL-SS3110-2608-01
View the full certificate- Document ID
- APL-COA-SS3110-2608-01
- Net content
- 10.05 mg
- Tested
- 31 August 2026
- Method
- HPLC / Mass Spectrometry
| Test | Specification | Result | Status |
|---|---|---|---|
| Appearance | White/Off-White Lyophilised Powder | Conforms | PASS |
| Identity (MS) | Confirmed | Confirmed | PASS |
| Purity (HPLC) | ≥98.0% | 99.22% | PASS |
| Peptide Content | 95–105% | 99.1% | PASS |
| Endotoxins | <0.5 EU/mg | <0.20 EU/mg | PASS |
| # | Time (min) | Area | % Area | Identification |
|---|---|---|---|---|
| 1 | 1.940 | 11,520 | 0.160 | — |
| 2 | 2.310 | 7,143,840 | 99.220 | SS-31 |
| 3 | 2.570 | 25,200 | 0.350 | — |
| 4 | 3.020 | 13,680 | 0.190 | — |
| 5 | 4.280 | 5,760 | 0.080 | — |
| Monitored (m/z) | Detected (m/z) | Intensity |
|---|---|---|
| 321 | 320.94 | 1.5 |
| 641 | 640.83 | 2.8 |
SS-31
Intensity ×107
Every published SS-31 batch
Match the batch number printed on your vial to open its certificate.
| Batch | Size | Tested | Purity | Certificate |
|---|---|---|---|---|
| APL-SS3110-2608-01 | 10 mg | 31 August 2026 | 99.22% | View |
SS-31 testing — common questions
- Is SS-31 third-party tested?
- Every batch of SS-31 is analysed in our own laboratory by HPLC / Mass Spectrometry, and all 1 published batch appear on this page with their full analytical results, chromatogram and mass spectrum. Independent third-party verification currently covers a selection of our range rather than every compound, and SS-31 is not among them at present.
- What purity is the current batch of SS-31?
- Batch APL-SS3110-2608-01, the batch currently shipping, measured 99.22% by HPLC / Mass Spectrometry, tested 31 August 2026. The release specification is ≥98.0%. Across the 1 batch published here, measured purity was 99.22%.
- How do I find the certificate for the SS-31 vial I have?
- Each certificate reports one production batch, so match the batch number printed on your vial against the batch history on this page rather than against the compound in general. 1 batch is published: APL-SS3110-2608-01. If the batch you hold isn't listed, email [email protected] with the compound and batch number and we'll send the document.
- What is SS-31 tested for?
- Every batch is tested for Appearance, Identity (MS), Purity (HPLC), Peptide Content and Endotoxins. Each result is printed beside a fixed specification — ≥98.0% for purity, set as house policy rather than per batch, so a batch cannot pass by having its target moved. Molecular identity is confirmed by LC-MS across 2 monitored ion channels.
SS-31 identification
The registry identifiers printed on every SS-31 certificate. They are what lets the compound be checked against a public record independently of anything we assert about it.
- CAS Number
- 736992-21-5
- Molecular Formula
- C32H49N9O5
- Molecular Weight
- 639.79 g/mol
- Form
- Lyophilised Powder
- Presentation
- 10 mg
Sequence
D-Arg-Dmt-Lys-Phe-NH2 (Dmt = 2,6-dimethyl-L-tyrosine)Next
Holding a SS-31 batch that isn't listed above? Email [email protected] with the batch number and we'll send the document. For the analytical method behind these figures, see our guide to HPLC in peptide quality control.
All products are supplied for laboratory research use only. They are not therapeutic goods and are not for human or veterinary use.