Available ZENTRA batch reports are published below so researchers can review the analytical evidence reported for each identified sample or batch.
View Product COAs ↓ Understand Testing EvidenceEnter the batch code from your ZENTRA vial label. All codes begin with "ZC".
ZC0005 · ZC0006 · ZC0007
Can't find your batch code? Contact our team for assistance.
Each published report provides batch-specific analytical data from an independent laboratory.
Compared with the expected molecular mass shown on the batch report
HPLC purity percentage verified at 99%+ on every batch
Confirmed against published reference standard values
Fully traceable to manufacturing and testing records
Independent laboratory identified on the batch report
Analytical date and report details shown on the COA
ZENTRA publishes the available analytical documentation for identified product batches.
Product and batch identifiers connect the report to the sample described
Purity data shown where included on the individual report
Mass-spectrometry data shown where included on the individual report
Available documentation is linked to the identifiable product or batch
Certificates of Analysis for all ZENTRA products.
Products marked “Coming Soon” are awaiting their certificate upload — each will link directly to its latest COA PDF as soon as it is available. You can also verify any batch instantly using the form above.
Browse products and check the available batch-specific analytical documentation before making a research purchasing decision.
Browse All ProductsIndependent analytical documentation
Batch verification connects a specific ZENTRA product lot to its available analytical documentation. Each published entry identifies the compound, batch code and independent laboratory report associated with that batch. This allows researchers to check documentation against the code printed on the product label rather than relying on a general or undated certificate.
If a code is not recognised, check the characters carefully and contact ZENTRA before relying on the product documentation.
High-performance liquid chromatography, or HPLC, separates components within a sample and reports the relative area of the detected peaks. The stated purity result describes chromatographic purity under the laboratory method used. It does not, by itself, confirm the identity of a compound or establish suitability for any particular application.
Mass spectrometry examines mass-to-charge data and can support confirmation that the expected molecular identity is present. HPLC and mass spectrometry answer different analytical questions, so reports should be read according to the method and result actually shown rather than treated as interchangeable tests.
A batch-specific report is more useful than a generic certificate because it creates a traceable link between a labelled lot and its analytical record. ZENTRA publishes available reports by batch so researchers can review the relevant document directly and distinguish one production lot from another.
Start with the sample name and batch reference, then confirm the analytical method, reported result and laboratory details. Review any limitations or notes included by the laboratory. A certificate should be interpreted only within the scope of the test performed: chromatographic purity, molecular identity and quantity are separate measurements and should not be assumed from one another.
The public directory is organised around ZENTRA batch codes. The product name and code shown online should correspond to the code on the product label.
Documentation is added after the relevant report has been received and checked. A product or batch may therefore be temporarily absent while its record is being prepared.
No. HPLC purity and molecular-identity testing are different measurements. The report should state which analytical method was performed and what the laboratory concluded.
Start with our Research Peptides UK guide, read the research peptide quality checklist, review our research standards, or browse the research compounds catalogue.
Research use only. ZENTRA products and documentation are supplied for laboratory, analytical and scientific research only. They are not intended for human or veterinary use.
Get exclusive deals and early access to new products.
By signing up, you agree to receive marketing emails from ZENTRA. You can unsubscribe at any time. See our Privacy Policy.
© 2026 ZENTRA Peptides. All rights reserved.
ZENTRA Peptides is a trading name of Zentra Brands Limited
Company No. 17212134
Legion House, 75 Lower Road, Kenley, England, CR8 5NH
All products are sold strictly for research purposes only. Not for human consumption.
Get 20% off your first order — register for free
×Enter your email to receive your exclusive first-order discount code.
By signing up, you agree to receive marketing emails from ZENTRA. You can unsubscribe at any time. See our Privacy Policy.
Your code:
WELCOME20
We've also sent this to your email.
Check your junk or spam folder if you don't see it in your inbox.
Need help?
Purchase Disclaimer
By purchasing from ZENTRA Peptides, you acknowledge and agree: All products are sold strictly for research purposes only. Not for human consumption. The buyer is responsible for ensuring compliance with all relevant laws and regulations. ZENTRA Peptides holds no liability for misuse of products or any adverse outcomes. Your purchase signifies your understanding and agreement to these terms.
Press Enter or click Search to find products
We use analytics cookies to improve the site and measure advertising. Details
