Melanotan II is a synthetic cyclic heptapeptide (CAS 121062-08-6, C50H69N15O9, 1024.2 g/mol) supplied as a lyophilized powder in a sealed 10 mg vial. Lot MT2-2502-B has a published third-party analytical report. Review product identity, documentation status, research standards, and traceability information before ordering.
CAS number
121062-08-6
Molecular formula
C50H69N15O9
Molecular weight
1024.2 g/mol
Form
Lyophilized powder, sealed vial
Price
$37.99 USD
Fulfillment
Ships from the U.S.; tracking is emailed after shipment
Documentation
Batch documentation available. The current published report identifies Melanotan II 10mg lot MT2-2502-B with a reported result of 98.07% (HPLC), tested Aug 19, 2026, certificate COA-2026-TUFEKC. Read the lot MT2-2502-B batch report, view the PDF, or browse the batch COA library.
How to check this lot yourself
This lot's report is public. You do not have to take our word for any of it — here is the whole check, in four steps:
Find the lot number on the vial. The label on this product carries lot MT2-2502-B.
Open the published report. The certificate for that lot is COA-2026-TUFEKC, dated Aug 19, 2026. Read the PDF.
Confirm the numbers match. The lot on the label and the lot on the certificate must be identical. If they are not, the document does not describe what you were sent.
Verify it with the laboratory, not with us. The issuing lab hosts its own record for this certificate: verify certificate COA-2026-TUFEKC. A supplier that cannot give you an independent verification route has not really given you a certificate.
What the report for lot MT2-2502-B shows
The reported result for this lot is 98.07% by HPLC-UV, tested Aug 19, 2026. That figure is the share of total detected peak area attributable to the main peak. It is worth being precise about what that does and does not establish: it describes the proportion of what the method detected, not the absolute contents of the vial, and it says nothing about water content, residual solvents, or anything the method cannot see. Identity is established separately — a purity percentage on its own does not confirm what the main peak actually is. The published certificate lists which analyses were run on this particular lot; the panel varies by product and by batch, so read the certificate for the lot you are buying rather than assuming a standard set.
Identity and packaging
Melanotan II 10mg is supplied as a lyophilized powder in a sealed vial, CAS 121062-08-6, molecular formula C50H69N15O9, molecular weight 1024.2 g/mol. Vials are sealed at the point of fill and shipped from Anchorage, Alaska, with tracking emailed once the parcel is accepted by the carrier.
Common questions about batch documentation
Is a certificate of analysis the same as “third-party tested”?
No. “Third-party tested” is a claim; a certificate of analysis is a document. The difference that matters is whether the certificate names a specific lot, carries a date and a certificate number, and can be checked with the issuing laboratory. A report that does not name the lot cannot be matched to the vial in your hand.
Can I read the report before I order?
Yes. Every published report is in the open batch COA library before the batch is listed for sale. Nothing is held back until after purchase.
What if the lot number on my vial does not match any published report?
Then the documentation does not cover what you received, and you should ask the supplier why before anything else. Email us and we will resolve it.
Does a high purity number mean the material is what the label says?
Not on its own. Purity by HPLC describes the proportion of detected peak area; identity is a separate determination, typically by mass spectrometry. Both belong on a complete report, which is why the full certificate matters more than a single headline percentage.
Research use only
For laboratory, analytical, educational, and in-vitro research only. Not for administration to or ingestion by any person or animal, and not for veterinary, therapeutic, or diagnostic use. Products ship as freeze-dried powder unless stated otherwise. See the research standards, traceability, shipping, and returns pages.