Certificate of analysis Current batch
MK-677 capsules Certificate of Analysis
Batch LOT-MK67-00006, tested March 21, 2026 by SR Bio Labs

Permanent Loti Labs archive copy. This file is preserved and is not overwritten when the customer-facing gallery changes.
Summary
This sample tested at 99.91% purity by HPLC. Its identity was confirmed by mass spectrometry.
Results
- Purity
- 99.91%HPLC
- Identity
- ConfirmedLC-MS
- Molecular weight
- 524.7 g/mol
Provenance
- Laboratory
- SR Bio LabsIndependent, U.S.-based third party
- Batch
- LOT-MK67-00006
- Test date
- March 21, 2026
Match the batch number on your vial label to the one above. Earlier batches stay on record below.
Metadata was transcribed from the certificate and checked against the laboratory-hosted source when an exact record was available.
View the customer-facing Capsules certificates
or search the complete COA archive. Specifications and every published batch for this compound are on the MK-677 compound profile.
Earlier batches of MK-677 capsules
| Tested | Batch | Purity | Laboratory | |
|---|---|---|---|---|
| Dec 29, 2025 | LOT-MK67-00005Current | 99.89% | SR Bio Labs | View record |
Research use only. This certificate is provided strictly for laboratory, analytical and research reference.

