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Certificate of analysis

Certificate COA5628

PEP-RTA-3 20 mg, lot RETA20-0616. Tested by Bioviridian Inc. and issued Jun 25, 2026, 6 days after the sample was received. Every result it reports is set out below, and the laboratory's own PDF is linked at the foot of this page.

This lot has been superseded by a newer one. The certificate stays published because vials carrying lot RETA20-0616 are still in circulation and this is the document that covers them. The current lot of PEP-RTA-3 20 mg is lot RETA20-0803, certificate COA7599.

What did the laboratory find?

Each line below is a test the laboratory ran on this lot, the method it used, and the figure it reported. Every result conforms to specification.

TestMethodResult
IdentityMALDI-MSConforms
ContentHPLC quantitation20.58 mg
PurityRP-HPLC (214 nm)99.9%
EndotoxinUSP <85><0.05 EU/mL
Heavy metalsUSP <232><0.01 ppm

Details printed on the document

LaboratoryBioviridian Inc.
Sample as receivedPEP-RTA-3 20 mg
AppearanceWhite lyophilized powder
Molecular weight4731.2 g/mol
Retention time11.059 min
Sample receivedJun 19, 2026
Certificate issuedJun 25, 2026
Code printed on the documentCOA5628

What this certificate does and does not say

It describes one lot of material as it was at the date of issue. It is not a statement about any other lot, and it does not say the material is fit for any use in or on a human or an animal. Purity is the proportion of the main peak in an RP-HPLC trace at 214 nm, not a guarantee that the remainder is inert. Storage and handling after the material left the laboratory are outside what any certificate can cover, which the storage guide goes into.

How do you check it yourself?

The lot number printed on your vial must read RETA20-0616. If it does not, this is not the document for your vial and the one that is will be in the library. The code COA5628 can be entered at the laboratory's own verification page, which confirms the document against its record rather than against ours. The guide to reading a certificate explains what each figure means and what a certificate that omits one of them is hiding.

The laboratory's PDF

This is the document the figures above were transcribed from, published exactly as the laboratory issued it, with nothing removed or redrawn.

Open certificate COA5628 (PDF)

PEP-RTA-3 product page · This lot in the COA library · Lot report for June 2026

Lot certificatesPublished in full, and the product page says when a lot has none
≥99% purityHPLC and LC-MS verified
Same-day shippingOrders before 2pm ET
Secure checkoutCard details are entered on our payment partner's own encrypted page
Ships from the USADispatched domestically with tracking
Discreet packagingPlain box, no product names

Restock alerts and new lot reports, by email

One email when a new certificate is published, when a sold-out compound is back, or when a new compound is added. About twice a month, nothing else.