What Is a Janoshik COA?
A Certificate of Analysis, commonly called a COA, is a
laboratory report containing analytical information about
a submitted sample. A laboratory-issued report can contain
information such as the sample description, test reference,
analytical results and other details associated with the
laboratory's testing process.
A document that carries a laboratory name or logo should
not automatically be treated as authentic. The most useful
verification step is to check whether the report can be
independently matched to the laboratory's own verification
record.
The basic principle:
Do not verify a COA only by looking at a PDF, screenshot,
logo or laboratory name. Verify the underlying laboratory
record and then compare the information returned by the
laboratory with the document you were given.
1
What Should You Check on a Janoshik COA?
Before attempting online verification, examine the COA
itself. Look for the identifying information that allows
the report to be compared against the laboratory record.
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COA Information
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What to Check
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Why It Matters
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Task number
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Confirm that the test reference is clearly shown.
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It helps identify the specific laboratory test.
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Unique key
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Locate the verification key associated with the report.
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It can be used with the laboratory verification system.
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Sample
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Compare the sample description with the material being represented.
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Helps establish what sample the report refers to.
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Batch / lot
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Compare it with the batch information supplied by the seller.
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A genuine report for another batch does not automatically validate your batch.
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Test date
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Check when the analysis was performed or reported.
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Helps establish the age and context of the result.
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Analytical results
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Compare the values with the original laboratory record.
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Altered numbers are one of the most important warning signs.
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2
Use the Official Janoshik Verification System
Janoshik's official verification page provides a mechanism
for checking the authenticity of tests conducted by the
laboratory. The official page asks for the
Task number and
Unique key. :contentReference[oaicite:1]{index=1}
When a test is available in the database, the verification
result can provide access to the corresponding report so
that the information can be compared with the certificate
you received. :contentReference[oaicite:2]{index=2}
1
Locate the Task Number
Find the Task number printed on the laboratory
documentation supplied to you.
2
Locate the Unique Key
Find the unique verification key associated with
the laboratory record.
3
Enter the Information on the Official Portal
Use Janoshik's official verification system rather
than relying solely on a vendor's own website,
screenshot or uploaded PDF.
4
Open the Returned Record
If the test is present in the laboratory database,
examine the returned report.
5
Compare Everything
Compare the original record with the COA supplied
by the seller. Do not compare only the headline
purity number.
Best practice:
A laboratory verification page should be treated as the
independent reference point. The seller's website is not
the same thing as the laboratory's underlying record.
3
Match the COA to the Correct Batch
One of the most important parts of COA verification is
establishing that the certificate actually relates to the
batch being represented.
A legitimate laboratory report can still be irrelevant to
a particular sample if it belongs to a different batch,
lot or production run.
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Item
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Example
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Match?
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Product
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Research material name
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✓
|
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Batch / Lot
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SYN-2026-001
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✓
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COA Task
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#00000
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✓
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Laboratory result
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Matches retrieved record
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✓
|
Remember:
A genuine Janoshik report for Product A from Batch 001
does not automatically verify Product A from Batch 002.
4
Compare the Online Record With the COA
Once the laboratory record has been retrieved, compare
the information carefully.
✓
Task number
Does the task reference correspond to the document?
✓
Unique key
Does the verification information correspond to the record?
✓
Sample name
Does the returned record describe the same sample?
✓
Batch or lot
Does the batch information match?
✓
Results
Do the reported analytical values match?
✓
Dates
Do the test and report dates correspond?
5
How to Spot a Potentially Fake COA
Fake or misleading certificates can range from completely
fabricated documents to genuine laboratory reports that
have been reused for a different batch.
The following warning signs should trigger additional
verification rather than an immediate conclusion.
🚩 No Verification Information
The document claims to be a laboratory certificate
but provides no usable information for independent
verification.
🚩 Batch Mismatch
The COA batch does not correspond with the batch
being represented by the seller.
🚩 Numbers Do Not Match
The online laboratory record contains different
results from the PDF or screenshot supplied to you.
🚩 Edited Screenshots
Only a cropped screenshot is supplied and important
identifying information is missing.
🚩 Reused Old Certificate
A seller presents a historical laboratory result as
though it represents a current batch without evidence
connecting the two.
🚩 Inconsistent Formatting
Different sections of the document appear to contain
inconsistent fonts, spacing, dates or values.
🚩 Missing Laboratory Record
The claimed report cannot be located through the
laboratory's official verification mechanism.
🚩 Pressure to Skip Verification
A seller discourages independent verification or
insists that its own screenshot is sufficient proof.
6
Do Not Confuse HPLC Purity With Complete Verification
A chromatographic purity result is only one part of an
analytical assessment.
Depending on the test panel and analytical method, a COA
may contain different types of information. It is important
to understand exactly what was tested and what the reported
result means.
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Result Type
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General Purpose
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Important Question
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HPLC
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Chromatographic analysis used to assess separation
and, depending on method, relative purity.
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What exactly does the method quantify?
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Mass spectrometry
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Can provide information related to molecular mass
and identity.
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Does the reported analytical evidence support the
expected compound?
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Other analytical tests
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May evaluate additional characteristics depending
on the laboratory's test panel.
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What parameter was actually measured?
|
Educational reminder:
A high HPLC area percentage should not automatically be
interpreted as proof of every aspect of a material's
identity, composition or suitability.
7
Why a Seller's COA Page Is Not Enough
A vendor may publish COAs on its website to provide
transparency. That can be useful, but the document should
still be independently checked whenever possible.
A website can display a PDF, image or screenshot. The
independent laboratory verification system provides a
separate reference point.
Stronger verification workflow:
Seller's COA → Official laboratory verification →
Original laboratory record → Batch comparison →
Result comparison.
8
What to Do if a COA Looks Suspicious
If the certificate does not match the official laboratory
record, do not attempt to "fix" the discrepancy yourself.
Treat the difference as something requiring clarification.
1
Stop Relying on the Document
Do not treat the disputed document as independently
verified until the discrepancy is resolved.
2
Recheck the Task Information
Confirm that the Task number and Unique key were
entered correctly.
3
Compare the Entire Record
Check the sample, batch, dates and reported
analytical results.
4
Ask for Clarification
Request an explanation from the seller or relevant
party if the information cannot be reconciled.
Major warning:
If the official laboratory record contains materially
different information from the supplied certificate,
consider the document unverified until the discrepancy
has been explained.
9
Janoshik COA Verification Checklist
Use the following checklist whenever you review a
Janoshik laboratory certificate.
1
Locate the Task number.
3
Use the official Janoshik verification system.
4
Confirm that the test exists in the laboratory record.
5
Compare the sample name.
6
Compare the batch or lot number.
7
Compare the test and report dates.
8
Compare the analytical results.
9
Check whether the document contains signs of alteration.
10
Treat unresolved discrepancies as a reason for further investigation.
Real vs. Suspicious COA: Quick Comparison
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Check
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Stronger Evidence
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Warning Sign
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Verification
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Report can be independently retrieved.
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No usable verification information.
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Batch
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Batch corresponds with the material being represented.
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Different or unexplained batch.
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Results
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Online record matches supplied document.
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Numbers have been changed or do not match.
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Document
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Information is consistent throughout the report.
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Obvious inconsistencies or unexplained edits.
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Transparency
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Independent verification is encouraged.
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Customer is discouraged from checking the original record.
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Frequently Asked Questions About Janoshik COA Verification
How do I verify a Janoshik COA?
Use Janoshik's official verification system and enter
the Task number and Unique key associated with the
certificate. If the test is available, compare the
returned laboratory record with the document you were
given. :contentReference[oaicite:3]{index=3}
What is a Janoshik Task number?
The Task number is an identifying reference associated
with a laboratory test. It is used together with the
verification information when checking a report.
What is the Unique key on a Janoshik COA?
The Unique key is verification information associated
with the laboratory record. Janoshik's official
verification page provides fields for the Task number
and Unique key. :contentReference[oaicite:4]{index=4}
Is a PDF COA enough to prove a laboratory test is genuine?
A PDF by itself should not be treated as the strongest
evidence of authenticity. Independent verification
against the laboratory's own record provides a stronger
way to determine whether the supplied document matches
the laboratory record.
Why is batch matching important?
A laboratory report documents the sample that was tested.
If a certificate belongs to another batch, it does not
automatically establish that the current material came
from the same tested batch.
What if the COA cannot be verified?
First confirm that the Task number and Unique key were
entered correctly. If the report still cannot be
independently verified, treat the certificate as
unverified and request clarification or additional
documentation.
What if the online result is different from the PDF?
A discrepancy should be treated seriously. Compare the
sample, batch, dates and analytical values and request
clarification before treating the document as authentic.
Does a high HPLC purity percentage prove everything about a sample?
No. The meaning of an HPLC purity result depends on the
analytical method and reporting procedure. Other analytical
information may be necessary depending on the question
being investigated.
Can a genuine COA be misused?
Yes. A genuine laboratory report can potentially be
presented as documentation for a different batch or
product. This is why matching the report to the specific
batch being represented is important.
Final Takeaway: Verify the Record, Not Just the Paper
A professional-looking COA can provide useful information,
but appearance alone is not independent verification.
The strongest basic workflow is straightforward:
Find the Task number → Find the Unique key →
Verify through the official laboratory system →
Retrieve the record → Match the batch →
Compare the results.
If the information matches, you have stronger evidence
that the certificate corresponds to the laboratory record.
If the information does not match, the discrepancy should
be investigated rather than ignored.
This approach also helps distinguish between a genuine
laboratory certificate and a document that may have been
copied, altered, recycled or presented outside the context
of the original tested batch.
Explore Synovex Bio COA Information
Want to learn more about laboratory documentation and
analytical reports? Visit the Synovex Bio COA information
page or contact our team for documentation-related questions.
Educational Disclaimer
This article is provided for general educational and
informational purposes. It explains general principles of
reviewing laboratory documentation and independently
checking a laboratory report.
Laboratory results should be interpreted according to the
applicable analytical method, laboratory documentation and
relevant scientific context. This guide is not a substitute
for professional laboratory analysis, regulatory advice or
expert scientific review.
