Retatrutide certificates of analysis (COA)
14 released lots of Retatrutide (CAS 2381089-83-2). Each lot is tested in the manufacturer's laboratory for purity by reverse-phase HPLC and for identity by LC-MS before release, and the lot number printed on every unit matches its certificate. Open a certificate for the full results, or confirm it with its number and key on Verify a certificate.
| Lot | Size | Certificate | Purity (RP-HPLC) | Identity (LC-MS) | Tested |
|---|---|---|---|---|---|
| PL-2610-172 | 60 mg | PL-26-00285 | 99.23% | Conforms (4,731.06 Da) (expected 4731.33 Da, found 4731.06 Da) | October 7, 2026 |
| PL-2610-171 | 50 mg | PL-26-00284 | 99.37% | Conforms (4,731.39 Da) (expected 4731.33 Da, found 4731.39 Da) | October 7, 2026 |
| PL-2610-170 | 40 mg | PL-26-00283 | 99.22% | Conforms (4,731.60 Da) (expected 4731.33 Da, found 4731.6 Da) | October 7, 2026 |
| PL-2610-169 | 30 mg | PL-26-00282 | 99.50% | Conforms (4,731.12 Da) (expected 4731.33 Da, found 4731.12 Da) | October 7, 2026 |
| PL-2610-168 | 20 mg | PL-26-00281 | 99.51% | Conforms (4,731.10 Da) (expected 4731.33 Da, found 4731.1 Da) | October 7, 2026 |
| PL-2610-167 | 10 mg | PL-26-00280 | 99.40% | Conforms (4,731.22 Da) (expected 4731.33 Da, found 4731.22 Da) | October 7, 2026 |
| PL-2610-166 | 5 mg | PL-26-00279 | 99.29% | Conforms (4,731.56 Da) (expected 4731.33 Da, found 4731.56 Da) | October 7, 2026 |
| PL-2609-087 | PL-26-00087 | 99.27% | Conforms (4731.6 Da) (expected 4731.4 Da, found 4731.6 Da) | September 19, 2026 | |
| PL-2609-086 | PL-26-00086 | 99.35% | Conforms (4731.5 Da) (expected 4731.4 Da, found 4731.5 Da) | September 19, 2026 | |
| PL-2609-085 | PL-26-00085 | 99.44% | Conforms (4731.3 Da) (expected 4731.4 Da, found 4731.3 Da) | September 19, 2026 | |
| PL-2609-084 | PL-26-00084 | 99.38% | Conforms (4731.7 Da) (expected 4731.4 Da, found 4731.7 Da) | September 19, 2026 | |
| PL-2609-083 | PL-26-00083 | 99.31% | Conforms (4731.2 Da) (expected 4731.4 Da, found 4731.2 Da) | September 19, 2026 | |
| PL-2609-082 | PL-26-00082 | 99.24% | Conforms (4731.1 Da) (expected 4731.4 Da, found 4731.1 Da) | September 19, 2026 | |
| PL-2609-081 | PL-26-00081 | 99.33% | Conforms (4731.5 Da) (expected 4731.4 Da, found 4731.5 Da) | September 19, 2026 |
Reading these certificates
HPLC purity is the share of UV-detectable material that elutes as the target compound; it is not the same as net peptide content, which also accounts for water and counter-ions. Identity means the measured mass matched the mass calculated for the compound. See how to read a certificate of analysis and HPLC and mass spectrometry explained.
Retatrutide · All certificates
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