909 AMINOSFrom Vial to Report: Lot Traceability
Lot traceability is the documented chain that links a vial to its lot, and that lot to the laboratory certificate for a sample taken from it.
- Every 909 vial label shows its lot number and a QR code.
- The QR code opens that lot's page, which links to the laboratory's original certificate.
- Lots are checked again when an order is packed.
- This is documented traceability: the lab tested a sample from the lot, not every vial.
A certificate of analysis is only useful if you can tell which vials it describes. Traceability is the chain that connects the vial on your bench to the laboratory record for the lot it came from. This page describes each link in that chain at 909, using lot TESA-2609A, and what each link can and can't prove.
The chain at a glance
| Link | What carries it | Where you see it |
|---|---|---|
| Vial → lot | The lot number on the vial label | The label, for example LOT: TESA-2609A |
| Lot → lot page | The QR code on the label (marked "SCAN FOR COA") | 909aminos.com/coa/TESA-2609A |
| Lot page → laboratory record | The laboratory's name and certificate number, and the original file | KMD Analytical, certificate 9AL-20260921-C7PG-01 |
| Laboratory record → issuing lab | The laboratory's own verification service | kmdanalytical.com/verify |
1. The label: what it identifies
A 909 vial label carries:
- the product name and quantity per vial (for example Tesamorelin, 10 mg)
- the physical form (for example LYOPHILIZED POWDER)
- the lot number (
LOT: TESA-2609A) - a purity figure copied from that lot's published certificate (
PURITY: 99.22%). It is the result for that one lot, not a figure for the product in general. - a QR code with the words "SCAN FOR COA"
- the research-use statements "FOR RESEARCH USE ONLY" and "NOT FOR HUMAN CONSUMPTION"
The lot number is the key. Every other record is found through it.
2. The QR code: from label to lot page
The QR code holds the address of that lot's page, 909aminos.com/coa/<LOT>. Typing the address by hand reaches the same page. Lot numbers use only capital letters, digits, dots and hyphens, so they can be read and typed without ambiguity.
3. The lot page: one record per lot
909aminos.com/coa/TESA-2609A shows:
- the product, product code (909A-TESA-10) and quantity
- the lot number
- the laboratory and its certificate number
- the test or report date
- each result next to its specification, as the certificate states it
- a link to the laboratory's original certificate file
Each tested lot has its own page. Results are never carried over from one lot to another, and the Documentation Center lists the tested lots under each product. A product without a published certificate is shown as such, with no results.
4. The certificate: the laboratory's record
The original certificate names the client, the client's lot number, the laboratory's own batch and sample IDs, and the dates the sample was received and analyzed. The laboratory's certificate number (9AL-20260921-C7PG-01) is what you use to check the document with the laboratory itself. See How to verify a certificate of analysis.
5. The packing check
When an order is packed:
- The lot written on each vial must match the lot on file for that product.
- The label printed for the vial must carry the same lot as the vial itself.
- One QR code from the batch is scanned to confirm it opens that lot's certificate page.
Who confirms what
Traceability depends on two parties, and it helps to know where each one's responsibility starts and stops.
| Confirmed by the laboratory | 909's responsibility | |
|---|---|---|
| Results for the sample it received | Yes | – |
| That the sample was labeled TESA-2609A when it arrived | Recorded as provided by the client | 909 submitted it under that lot |
| That your vial belongs to the lot the sample came from | No. Laboratories report client-supplied lot numbers as provided, without independently verifying them | Lot records, labeling and the packing check |
| Lots other than the one tested | No | Each lot gets its own record |
This is why the certificate alone isn't the whole story. It describes one sample. The label, the lot page and the packing check are what connect that sample to the vials in a shipment.
Documented traceability, not vial-by-vial testing. Label matching, lot records and the packing check give documented traceability: a recorded link from each vial to its lot, and from the lot to its certificate. They are not independent laboratory verification of every vial. The laboratory analyzed the sample submitted for the lot; the individual vials in a shipment are not each tested, and the laboratory doesn't confirm which vials belong to the lot.
What to check when an order arrives
- Read the lot number on the vial label.
- Scan the QR code, or type
909aminos.com/coa/<LOT>, and confirm the page shows the same lot, character for character. - Confirm the product name and quantity on the page match the label.
- Open the original certificate and find the same lot number and the laboratory's certificate number on it.
- If anything doesn't match, contact support@909aminos.com with the order number and lot number before using the material.
What traceability can't tell you
- It links a vial to a laboratory record through 909's documentation. It isn't a laboratory test of that vial.
- It doesn't add tests: a certificate covers only the methods it lists.
- It doesn't extend one lot's results to another lot, size or product.
- It shows which record applies, not that the material suits any particular purpose.
For reading the results themselves, see How to read a peptide certificate of analysis.
Frequently asked questions
Does a certificate of analysis prove that every vial was tested?
No. The laboratory analyzed a sample submitted for the lot. Label matching, lot records and the packing check give documented traceability from each vial to its lot; they are not laboratory testing of each vial.
How do I find the certificate for my vial?
Scan the QR code on the vial label, or type 909aminos.com/coa/ followed by the lot number, and confirm the page shows the same lot, character for character. The lot page links to the laboratory's original certificate.
Does the laboratory confirm which vials belong to a lot?
No. Laboratories record the client's lot number as provided, without verifying it independently. The link between a vial and the tested sample comes from 909's lot records and labeling.
What should I do if my vial's lot doesn't match the lot page?
Don't use the material. Contact support@909aminos.com with the order number and the lot number printed on the vial.
Sources
- 909 Aminos lot page for TESA-2609A
- KMD Analytical certificate 9AL-20260921-C7PG-01 (lot TESA-2609A), original PDF
- KMD Analytical: certificate verification service
Sources are cited for reference. Their publishers have not reviewed or endorsed this guide.
Related guides
- Identity Testing: Retention Time and UV vs. Mass Spectrometry
- How to Verify a Certificate of Analysis
- How to Read a Peptide Certificate of Analysis (COA)
For laboratory research use only. Not for human or veterinary use. Not FDA approved.
Source certificate: lot TESA-2609A · Documentation Center · Ver en español