Traceability. The analytical report behind this certificate names the manufacturing lot, and the vials sold under VA-2512-9985 were filled from it. The lot identifier itself stays internal: it is shared with every brand the manufacturer fills for, and publishing it would let anyone match this material to a certificate issued under another name.
Results
| Test | Specification | Result | Status |
|---|---|---|---|
| Appearance Visual inspection (Vantage Aminos) | White lyophilized powder | Conforms | PASS |
| Identity HPLC-UV-MS, positive polarity (+MS) | Theoretical mass ± 1.0 Da | 751.51 Da (theor. 751.43) | PASS |
| Purity HPLC-UV, area % · DAD 210.1-396.6 nm | ≥ 98.0 % | 99.70 % | PASS |
| Quantity Quantitation as reported | 90-110 % of label (5 mg) | 4.894 mg (97.9 % of label) | PASS |
| Largest single impurity HPLC-UV, area % | Report | 0.3 % at 7.01 min | REPORT |
| Water content Karl Fischer titration | ≤ 8 % w/w | 4.32 % w/w | PASS |
Open the certificate (PDF, opens in a new tab) Go to Selank All batch records
Identity and handling
Specimen readout VA-SELANK-5MG
- CAS
- 129954-34-3
- FORMULA
- C33H57N11O9
- MOL. WEIGHT
- 751.9
- SEQUENCE
- Thr-Lys-Pro-Arg-Pro-Gly-Pro
- FORM
- Lyophilized powder
- FILL
- 5 mg
- CONTAINER
- 3 mL vial
- MANUFACTURED
- 2026-04-28
- FILLED
- 2026-05-12
- ANALYSED
- 2026-05-16
- RETEST BY
- 2028-04-28
- STORAGE
- Refrigerated, 2-8 °C, protected from light
- DOCUMENT
- COA-VA-2512-9985 rev 1.1
Method
- Technique Reverse-phase HPLC with UV detection, MS confirmation
- Detection 210.1-396.6 nm (DAD range, not a single wavelength)
- MS technique HPLC-UV-MS (as printed on certificate)
- Ionisation Positive polarity (+MS)
- Scan range m/z 48.2 - 1997.5 (as plotted)
- Theoretical mass 751.43 Da
- Observed mass 751.51 Da
- Deviation +0.08 Da
Column, mobile phases, gradient, flow rate and injection volume are not stated on the laboratory report and are therefore not listed.