Purity + Assay
Common GLP-1 peptide blind test
99.692% HPLC · 49.80 mg assay
Task
165576 · Verify key 891L96KSY7Z8Our most thoroughly tested batch, published with a full sterility panel (TAMC + TYMC). Janoshik ran five separate analyses on batch RT-40-V-001 in June 2026: 99.692% HPLC, 49.80 mg retatrutide assay, microbial sterility (TAMC and TYMC both pass), bacterial endotoxin <1 EU/Vial via LAL, heavy metals (As, Cd, Pb, Hg) not detected, and residual TFA not detected. This batch documents the full safety panel beyond HPLC purity.
Batch Facts
- Product
- ProPeptide Retatrutide 40mg Vial
- Batch number
- RT-40-V-001
- Molecule
- Retatrutide (LY-3437943), CAS 2381089-83-2
- Purity (HPLC)
- 99.692%
- Assay
- 49.80 mg retatrutide
- Sterility — TAMC
- Pass
- Sterility — TYMC
- Pass
- Bacterial endotoxin (LAL)
- <1 EU/Vial
- Heavy metals (As, Cd, Pb, Hg)
- Not detected
- Residual TFA
- Not detected
- Laboratory
- Janoshik Analytical
- Sample received
- 27 May 2026
- Analysis dates
- 1–16 June 2026
- Purity verify key
891L96KSY7Z8- Sterility verify key
7HDEPPG16HDB- Endotoxin verify key
UYL44AFJK4SV- Heavy metals verify key
ENHRQB3GVEXF- TFA verify key
8KB3WY6VT9VZ
Janoshik Reports
Sterility panel
Microbial limits (TAMC + TYMC)
Both pass
Task
165579 · Verify key 7HDEPPG16HDB
Contaminant panel
Bacterial endotoxin (LAL)
<1 EU/Vial
Task
165578 · Verify key UYL44AFJK4SV
Heavy metals
As, Cd, Pb, Hg analysis
All four not detected
Task
165580 · Verify key ENHRQB3GVEXF
Residual solvent
TFA analysis
Not detected
Task
165577 · Verify key 8KB3WY6VT9VZWhat These Tests Prove
Batch RT-40-V-001 ships with the most complete published panel in our catalogue: 99.692% HPLC purity, 49.80 mg assay, microbial sterility (TAMC and TYMC both pass), bacterial endotoxin <1 EU/Vial via LAL, no heavy metals detected, and no TFA detected. Each result has its own Janoshik verification key (Purity 891L96KSY7Z8, Sterility 7HDEPPG16HDB, Endotoxin UYL44AFJK4SV, Heavy metals ENHRQB3GVEXF, TFA 8KB3WY6VT9VZ) so any single number can be audited against the original report.
What these tests do not prove: TAMC and TYMC are microbial-limits (bioburden) measures and endotoxin (LAL) is a contamination benchmark — together they document the tested lot at the test date, but they are not a warranty of ongoing sterility once a vial is opened, reconstituted, or handled outside controlled conditions. The reports cover the tested lot only and do not warrant shelf life beyond the date stamp. Supplied for in-vitro laboratory research only.
Common Questions
What is batch RT-40-V-001?
The Retatrutide 40mg research vial. Janoshik ran a full five-test panel in June 2026: 99.692% HPLC, 49.80 mg retatrutide assay, microbial sterility (TAMC and TYMC both pass), bacterial endotoxin <1 EU/Vial, heavy metals (As, Cd, Pb, Hg) not detected, and TFA not detected.
What does the sterility panel (TAMC/TYMC) test?
TAMC (Total Aerobic Microbial Count) and TYMC (Total Combined Yeasts and Moulds Count) are the microbial-limits tests pharma uses to confirm a lot is free of significant bacterial, yeast and mould growth. Both passed for batch RT-40-V-001. This batch publishes the full sterility panel alongside its HPLC purity result.
What does <1 EU/Vial endotoxin mean?
EU is endotoxin units, measured via the LAL (Limulus Amebocyte Lysate) assay. <1 EU/Vial is the bacterial endotoxin load found in the vial. Endotoxin is a release test pharma runs on injectables; it is distinct from sterility testing, not a substitute for it. This batch publishes the number alongside the TAMC/TYMC sterility result.
How do I verify each Janoshik report?
Go to janoshik.com and paste the relevant verification key. Purity:
891L96KSY7Z8. Sterility: 7HDEPPG16HDB. Endotoxin: UYL44AFJK4SV. Heavy metals: ENHRQB3GVEXF. TFA: 8KB3WY6VT9VZ. Each returns the original report off Janoshik's server.
What product ships with batch RT-40-V-001?
The ProPeptide Retatrutide 40mg vial ships under batch RT-40-V-001, with this batch-matched COA included. The ProPeptide Retatrutide 20mg pen line ships under the earlier batch RET-20-V-2604-001.