TB-500 is a synthetic peptide (CAS 77591-33-4, C212H350N56O78S, 4963.4 g/mol) supplied as a lyophilized powder in a sealed 5 mg vial for laboratory research. Batch documentation is listed in the COA library when published. Review product identity, documentation status, research standards, and traceability information before ordering.
CAS number
77591-33-4
Molecular formula
C212H350N56O78S
Molecular weight
4963.4 g/mol
Form
Lyophilized powder, sealed vial
Price
$34.99 USD
Fulfillment
Ships from the U.S.; tracking is emailed after shipment
Documentation
Check the batch COA library for currently published analytical reports matching this product, strength, and lot before ordering.
Identity and packaging
TB-500 5mg is supplied as a lyophilized powder in a sealed vial, CAS 77591-33-4, molecular formula C212H350N56O78S, molecular weight 4963.4 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.