RET-20-C-2604-001 COA: 99.841% Retatrutide Pen

Our highest published HPLC purity. Janoshik Analytical tested this batch on 23 April 2026 — 99.841% HPLC at 22.51 mg/mL. Punch verification key APSLYZGYW4KA into janoshik.com to pull the raw report off their server.

Batch Facts

Product: Retatrutide 20mg Pen cartridge
Batch number: RET-20-C-2604-001
Molecule: Retatrutide (LY-3437943), CAS 2381089-83-2
Purity (HPLC): 99.841%
Measured concentration: 22.51 mg/mL
Test method: Common GLP-1 peptide blind test (HPLC)
Laboratory: Janoshik Analytical
Analysis date: 23 April 2026
Task number: 150762
Verification key: APSLYZGYW4KA

Janoshik Report

Full purity report from Janoshik Analytical. Open the image or the verification key to confirm independently.

Janoshik Analytical purity report for batch RET-20-C-2604-001, 99.841% HPLC

Open full report image Verify on Janoshik →

What This Test Proves

Janoshik confirmed peptide identity, chromatographic purity (99.841% HPLC), and assay concentration (22.51 mg/mL) for batch RET-20-C-2604-001. Verification key APSLYZGYW4KA pulls the original report off Janoshik’s server.

Country research pages using this batch as the proof lane: Buy Retatrutide Saudi Arabia | 20mg Pen COA, Buy Retatrutide Qatar | 20mg Pen COA, and Buy Retatrutide Lebanon | 20mg Pen COA. These pages separate COA-backed research-use retatrutide from Mounjaro and tirzepatide prescription-channel context.

What it does not prove: bacterial endotoxin, heavy-metal content, residual solvents, sterility, or shelf life beyond the test date. For the safety panel including endotoxin, heavy metals, and TFA, see batch RET-20-V-2604-001 on the vial line.

Common Questions

What is batch RET-20-C-2604-001?

Current Retatrutide 20mg Pen cartridge. Janoshik tested it 23 April 2026. 99.841% HPLC. 22.51 mg/mL measured concentration. Task 150762, verification key APSLYZGYW4KA.

How do I verify this Janoshik report?

Go to janoshik.com and paste verification key APSLYZGYW4KA. The portal returns the original report off Janoshik's server, independent of Remy. Task number is 150762.

What does 99.841% HPLC mean for this batch?

99.841% of the measured peptide is retatrutide (LY-3437943, CAS 2381089-83-2). The other 0.159% is peptide-related — usually truncated sequences or synthesis byproducts. HPLC does not see water, salts, or residual solvents.

What product ships with batch RET-20-C-2604-001?

The Retatrutide 20mg Pen cartridge. See the Retatrutide 20mg Pen page for product details, pricing, and order.

Where to go next

Product page Retatrutide 20mg Pen Pricing, delivery, and order for the batch shown here. Archive All published COAs See every Janoshik report Remy has published. Related batch RET-20-V-2604-001 — vial line 99.741% HPLC with heavy metals, TFA, and endotoxin panels. Related batch RETP002 — flagship 30mg Pen 99.262% HPLC on the flagship Retatrutide 30mg Pen release. Verification method How to verify a Janoshik COA Walkthrough of task IDs, verification keys, and the five fields that turn "third-party tested" into proof.